System to describe the chemical formulas for WEB.

Azo compound

Find chemicals by name or formulas.
This reference contains the names of substances and descriptions of the chemical formulas (including the structural formula and the skeletal formula).

Type the part of name or the formula of substance for search:
Languages: | | | Apply to found
Organic compound » Azo compound
Selected category: Azo compound
Total count of records found: 64. Showed records: 20.

21. Tartrazine

Molecular formula: C16H9N4Na3O9S2 CAS# 1934-21-0
Names
English:
1H-Pyrazole-3-carboxylic acid, 5-hydroxy-1-(4-sulfophenyl)-4-[(E)-2-(4-sulfophenyl)diazenyl]-, sodium salt (1:3)(CAS)
;
C.I. Acid Yellow 23
;
E102
;
EINECS:217-699-5
;
Pyrazole-3-carboxylic acid, 5-hydroxy-1-(p-sulfophenyl)-4-(p-sulfophenyl)azo-, trisodium salt
;
Pyrazole-3-carboxylic acid, 5-hydroxy-1-(p-sulfophenyl)-4-[(p-sulfophenyl)azo]-, trisodium salt
;
Tartrazine [Wiki]
;
Trisodium 5-hydroxy-1-(4-sulfonatophenyl)-4-[(E)-(4-sulfonatophenyl)diazenyl]-1H-pyrazole-3-carboxylate(IUPAC)
;
trisodium;5-oxo-1-(4-sulfonatophenyl)-4-[(4-sulfonatophenyl)diazenyl]-4H-pyrazole-3-carboxylate(IUPAC)
;
|`//`\<`/NaO3`S>`||/\\/N\\N/`|<`\NaOOC>_ppN_pN<_p<_(a-54)OH>_pp>-\\-//<`\`=`/>-SO3Na
|<_(a54)<_pp6O>_q6O^-_(A0,N0)Na^+>_qqN_qN<-\\-//<`\`=`/>-S<_qq6O><_(A0,N2)O>_p6O^-_(A0,N0)Na^+>_q<_(a54)OH>_qq_(a54)N`//N`\`||`\`//<|\\/>`\S`\O\`|O|`/O`^-_(A180,N0)Na`^+

22. dichlorophosphonoazo III

Molecular formula: C22H16Cl2N4O14P2S2 CAS# 1914-99-4
Names
English:
2,7-Naphthalenedisulfonicacid, 3,6-bis[(4-chloro-2-phosphonophenyl)azo]-4,5-dihydroxy- (7CI,8CI,9CI)
;
2,7-Naphthalenedisulfonicacid, 3,6-bis[2-(4-chloro-2-phosphonophenyl)diazenyl]-4,5-dihydroxy-(CAS)
;
3,6-Bis((4-chloro-2-phosphonophenyl)azo)-4,5-dihydroxynaphthalene-2,7-disulphonic acid
;
3,6-bis[(4-chloro-2-phosphonophenyl)hydrazinylidene]-4,5-dioxonaphthalene-2,7-disulfonic acid(IUPAC)
;
Chlorophosphonazo III
;
Chlorphosphonazo III
;
Dichlorophosphonazo III
;
EINECS:217-628-8
;
dichlorophosphonoazo III
;
PO(OH)2`/\`/`=`\<`-Cl>//-\-N=N-|<`/HO3`S>\\/\//<\SO3H>`|<`\\<`|OH>`/|`|`\`/c/`|OH>-N=N-/-\\<-Cl>`/`=`\/`\(HO)2O`P
OH`\P<_q4HO><_pp4O>`\`|`\`//|<`/Cl>\\/`|/NH`|N//`|<`\S<_qq4O><_pp4O>`\HO>//\/\\</S<_qq4O><_pp4O>/OH>|<`/|O`|`\`|c|`/|O`|`\>\\N|HN\|\//<\Cl>`|`\\`/|`/P<_q4OH><_pp4O>`/HO
OH`/P<_qq4O><_p4HO>`/`\\`/<`\Cl>||\//<`|>\N//N\|<`/S<_qq4O><_pp4O>`/HO>\\/\\/<\S<_qq4O><_pp4O>\OH>`||<`\<`|OH>`//<|>`\`/c/`|OH>/N\\N/`|/\\</Cl>|`//`\`|`\P<_qq4O><_p4OH>`\HO
H2O3`P`|/`/`\`||<`\Cl>/\\|-N_(x1.3,N2)N-|<`/HO3`S>\\/\//<\SO3H>`|<`\\<`|OH>`/|`|`\`/c/`|OH>-N=N-`|//\</Cl>||`/`\c\|PO3H2

23. Eriochrome Blue SE

Molecular formula: C16H9ClN2Na2O9S2 CAS# 1058-92-0
Names
English:
2,7-Naphthalenedisulfonic acid, 3-((5-chloro-2-hydroxyphenyl)azo)-4,5-dihydroxy-, disodium salt
;
2,7-Naphthalenedisulfonic acid, 3-[(E)-2-(5-chloro-2-hydroxyphenyl)diazenyl]-4,5-dihydroxy-, sodium salt (1:2)(CAS)
;
3-((5-Chloro-2-hydroxyphenyl)azo)-4,5-dihydroxy-2,7-naphthalenedisulfonic acid disodium salt
;
C.I. 16680
;
Disodium 3-[(E)-(5-chloro-2-hydroxyphenyl)diazenyl]-4,5-dihydroxy-2,7-naphthalenedisulfonate(IUPAC)
;
Disodium 3-[(E)-(5-chloro-2-hydroxyphenyl)diazenyl]-4,5-dihydroxynaphthalene-2,7-disulfonate
;
EINECS:213-894-4
;
Eriochrome Blue SE
;
Michrome No. 452
;
Mordant Blue 13
;
disodium;(3Z)-3-[(5-chloro-2-hydroxyphenyl)hydrazinylidene]-5-hydroxy-4-oxonaphthalene-2,7-disulfonate(IUPAC)
;
`/<|OH>`\\`|//<`|Cl>\||\N//N\/\//<`|OH>\||<\S<_qq4O><_pp4O>\O^-\hNa^+>`/`\\<`|>`/`\\<`|/`|OH>`/S<_qq4O><_pp4O>`/O`^-`/hNa`^+
|<\OH>`//`\`||<`\Cl>/\\/N`||xN/\/\/`||</S<_pp6O>/O`/`|O^-`|hNa^+>`\`//<|\|OH>`\`//<|\|OH>`\S<_qq6O>`\O\`|O^-`|hNa^+

24. Magneson XC

Molecular formula: C16H10ClN2NaO5S CAS# 3567-22-4
Names
English:
Benzenesulfonic acid, 5-chloro-2-hydroxy-3-[(E)-2-(2-hydroxy-1-naphthalenyl)diazenyl]-, sodium salt (1:1)(CAS)
;
Magneson XC
;
Sodium 5-chloro-2-hydroxy-3-[(E)-(2-hydroxy-1-naphthyl)diazenyl]benzenesulfonate(IUPAC)
;
benzenesulfonic acid, 5-chloro-2-hydroxy-3-[(2-hydroxy-1-naphthalenyl)azo]-, monosodium salt
;
sodium 5-chloro-2-hydroxy-3-[(2-hydroxy-1-naphthyl)diazenyl]benzenesulfonate
;
Na^+_(x1.8,N0)O`^-\S<_qq4O><_pp4O>\||\<|Cl>//`|<`\\<`|OH>`/>/N`||N/`|/\\|\\|`//`\`||</>`\`|`\HO
`//`-<`/Cl>`\\/<`\NaO3`S>=</OH>\-N=N-/-\\`/`-`/\\-//`\`-`\/`\HO

25. azomethane

Molecular formula: C2H6N2 CAS# 503-28-6
Categories: Azo compound
Names
English:
(CH3N)2
;
(E)-CH3N=NCH3
;
(E)-Dimethyldiazene(IUPAC)
;
DIAZENE, DIMETHYL-
;
Diazene, 1,2-dimethyl-, (E)-(CAS)
;
Dimethyldiazene(IUPAC)
;
azomethane
;
H3C\N//N\CH3
/N\\N/

26. Sudan I

Molecular formula: C16H12N2O CAS# 842-07-9
Categories: Azo compound , Dye , Phenols
Names
English:
1-(2-phenyldiaz-1-enyl)-2-naphthol
;
1-(Phenylazo)-2-naphthol
;
1-(Phenyldiazenyl)-2-naphthol(IUPAC)
;
1-Phenylazo-2-naphthalenol
;
1-Phenylazo-β-naphthol
;
1-[(E)-Phenyldiazenyl]-2-naphthol(IUPAC)
;
1-[(E)-phenyldiazenyl]naphthalen-2-ol
;
2-Naphthalenol, 1- (phenylazo)-
;
2-Naphthalenol, 1-[(E)-2-phenyldiazenyl]-(CAS)
;
2-naphthalenol, 1-[(E)-phenylazo]-
;
C.I. 12055
;
C.I. Solvent Yellow 14
;
CI Solvent Yellow 14
;
EINECS:212-668-2
;
Fast Orange
;
Fat Orange I
;
Solvent Orange R
;
Sudan I [Wiki]
;
OH`\/`\//`\`=`/\\<->`/\\-/-N\\N-\\-//`\`=`/
`/`\\`|//\||\N//N\|\//`|`\`|//\||`/`\`/|`/HO
|`//`\`||/\\/N\\N/`|/\\|`/|\\/`||`\`/`\`|`\HO

27. Sudan II

Molecular formula: C18H16N2O CAS# 3118-97-6
Categories: Azo compound , Dye , Phenols
Names
English:
1-((2,4-Dimethylphenyl)azo)-2-naphthalenol
;
1-(2,4-Dimethylphenylazo)-2-naphthol
;
1-Xylylazo-2-naphthol
;
1-[(2,4-Dimethylphenyl)azo]-2-naphthalenol
;
1-[(E)-(2,4-Dimethylphenyl)diazenyl]-2-naphthol(IUPAC)
;
2-Naphthalenol, 1-((2,4-dimethylphenyl)azo)-
;
2-Naphthalenol, 1-[(2,4-dimethylphenyl)azo]-
;
2-Naphthalenol, 1-[(E)-2-(2,4-dimethylphenyl)diazenyl]-(CAS)
;
2-Naphthol, 1-(2,4-xylylazo)-
;
AF Red No. 5
;
C.I. 12140
;
C.I. Solvent Orange 7
;
Color Index No: 12140
;
EINECS:201-634-2
;
EINECS:221-490-4
;
Ext. D & C Red No.14
;
FD & C Red No.32
;
Fettorange B
;
Oil Red RO
;
Oil Red XO
;
Pyronalrot R
;
Solvent Orange 7
;
Sudan II [Wiki]
;
Sudan Orange
;
OH`\/`\//`\`=`/\\<->`/\\-/-N\\N-\-//<->`\`=`/\`/
`/|`/`\\`|<`\>//\|\N//N\/\||`/`\\<`/HO>`|/`|//\||`/
\/\||`/<|>`\\`|/`|HN/N`||`\`/O/`|//\|<`/>\\/`||`\`//

28. Sudan III

Molecular formula: C22H16N4O CAS# 85-86-9
Categories: Azo compound , Dye , Phenols
Names
English:
1-[(E)-{4-[(E)-Phenyldiazenyl]phenyl}diazenyl]-2-naphthol(IUPAC)
;
1-[[4-(Phenylazo)phenyl]azo]-2-naphthalenol
;
1-[[p-(Phenylazo)phenyl]azo]-2-naphthol
;
2-Naphthalenol, 1-[(E)-2-[4-[(E)-2-phenyldiazenyl]phenyl]diazenyl]-(CAS)
;
2-Naphthalenol, 1-[[4- (phenylazo)phenyl]azo]-
;
2-Naphthol, 1-[[p-(phenylazo)phenyl]azo]-
;
2-naphthalenol, 1-[[4-(phenylazo)phenyl]azo]-
;
C.I. 26100
;
Cerasin Red
;
EINECS:201-638-4
;
Fat Ponceau G
;
Scarlet B
;
Solvent Red 23
;
Sudan G
;
Sudan III [Wiki]
;
Sudan Red
;
Sudan Red B
;
Sudan Red BK
;
Sudan Red III
;
Sudan V
;
Tony Red
;
`|//\||`/|`/<|OH>`\\`|//\|\N//N\||\//<`|`\\`/>\N//N\||\//`|`\\`/
|`//`\`||/\\/N\\N/\//`|<`\\`/||>/N\\N/`|/\\|`/|\\/`||`\`/`\`|`\HO
OH`\/`\//`\`=`/\\<->`/\\-/-N\\N-\\-//<`\`=`/>-N//N-\\-//`\`=`/

29. Sudan IV

Molecular formula: C24H20N4O CAS# 85-83-6
Categories: Azo compound , Dye , Phenols
Names
English:
1-[(E)-{2-Methyl-4-[(E)-(2-methylphenyl)diazenyl]phenyl}diazenyl]-2-naphthol(IUPAC)
;
1-[(E)-{2-methyl-4-[(E)-(2-methylphenyl)diazenyl]phenyl}diazenyl]naphthalen-2-ol
;
1-[[2-Methyl-4-[(2-methylphenyl)azo]phenyl]azo]-2-naphthalenol
;
2-NAPHTHALENOL, 1-((2-METHYL-4-((2-METHYLPHENYL)AZO)PHENYL)AZO)-
;
2-Naphthalenol, 1-[(E)-2-[2-methyl-4-[(E)-2-(2-methylphenyl)diazenyl]phenyl]diazenyl]-(CAS)
;
2-Naphthalenol, 1-[[2-methyl-4-[(2-methylphenyl)azo]phenyl]azo]-(CAS)
;
2-Naphthol, 1-[[4-(o-tolylazo)-o-tolyl]azo]-
;
C.I. 26105
;
C.I. Solvent Red 24
;
EINECS:201-635-8
;
Fat Red B
;
Lipid Crimson
;
Oil Red
;
Oil Red BB
;
Oil Red IV
;
Scarlet Red
;
Scarlet Red N.F
;
Sudan IV [Wiki]
;
Sudan R
;
o-Tolylazo-o-tolylazo-b-naphthol
;
o-Tolylazo-o-tolylazo-β-naphthol
;
OH`\/`\//`\`=`/\\<->`/\\-/-N\\N-\-//<`\`=`/\`/>-N//N-\-//`\`=`/\`/
CH3|\|`//`\`||/\/N\\N/\\/<\CH3>`||<`\`//|>/N\\N/\|\\/`||`\`/`\`|<`\HO>//\||
/\\/`||`\`//<|>`\`//|`/O/\||N`/HN|`/||\<//`|`\c\/>|N`//N|\\|`//`\`||<`\>/

30. Oil Red O

Molecular formula: C26H24N4O CAS# 1320-06-5
Categories: Azo compound , Dye , Phenols
Names
English:
1-(2,5-Dimethyl-4-(2,5-dimethylphenylazo)phenylazo)-2-naphthol
;
1-[(E)-{4-[(E)-(2,5-Dimethylphenyl)diazenyl]-2,5-dimethylphenyl}diazenyl]-2-naphthol(IUPAC)
;
2-Naphthalenol, 1-[(E)-2-[4-[(E)-2-(2,5-dimethylphenyl)diazenyl]-2,5-dimethylphenyl]diazenyl]-(CAS)
;
C.I. 26125
;
EINECS:215-295-3
;
Oil Red O [Wiki]
;
Solvent Red 27
;
Sudan Red 5B
;
OH`\/`\//`\`=`/\\<->`/\\-/-N\\N-\-//<`\</>`=`/\`/>-N//N-\-//`\</>`=`/\`/
/\\/`||`\`//<|>`\`//|`/O/\||N`/HN|\\</>|<\>`//<`\`||/>|N`//N|\\|`//`\<`/>`||<`\>/

31. Sudan Black B

Molecular formula: C29H24N6 CAS# 4197-25-5
Names
English:
(2,2-dimethyl-1,3-dihydroperimidin-6-yl)-(4-phenyldiazenylnaphthalen-1-yl)diazene(IUPAC)
;
1H-Perimidine, 2,3-dihydro-2,2-dimethyl-6-[(E)-2-[4-[(E)-2-phenyldiazenyl]-1-naphthalenyl]diazenyl]-(CAS)
;
2,2-Dimethyl-6-[(E)-{4-[(E)-phenyldiazenyl]-1-naphthyl}diazenyl]-2,3-dihydro-1H-perimidine(IUPAC)
;
2,2-dimethyl-6-[(E)-{4-[(E)-phenyldiazenyl]naphthalen-1-yl}diazenyl]-2,3-dihydro-1H-perimidine
;
2,3-dihydro-2,2-dimethyl-6-[[4-(phenylazo)-1-naphthyl]azo]perimidine
;
C.I. 26150
;
C.I. Solvent Black 3
;
Ceres Black BN
;
EINECS:224-087-1
;
Fat Black HB
;
Solvent Black 3
;
Sudan Black
;
Sudan Black B [Wiki]
;
`\`-`\//-\\`/`-`/<`-N<_(y.5)H>`\$slope(30)<`/><`\>$slope()/N<_(y-.5)H>->\\-//-N\\N-/-/`\\`-`//\-\<`//`-`\\>-N//N-\\-//`\`=`/

32. Nitrazine

Molecular formula: C16H10N4O11S2 CAS# 1716-22-9
4.57.5 pH
Names
English:
(3E)-3-[(2,4-Dinitrophenyl)hydrazono]-4-oxo-3,4-dihydro-2,7-naphthalenedisulfonic acid(IUPAC)
;
(3E)-3-[(2,4-dinitrophenyl)hydrazinylidene]-4-oxonaphthalene-2,7-disulfonic acid(IUPAC)
;
2,7-Naphthalenedisulfonic acid, 3-[2-(2,4-dinitrophenyl)hydrazinylidene]-3,4-dihydro-4-oxo-, (3E)-(CAS)
;
Nitrazine [Wiki]
;
phenaphthazine
;
NO2|\|`//`\<`/O2`N>`||/\/NH`|N//\|O`|/\//`|</S<_qq4O><_pp4O>/OH>`\\`/|`|`\`//<|>`\S<_qq4O><_pp4O>`\HO
O`^-\N^+<`//O>-//-</N^+<`\\O>_p6O^->\\<`/`=`\>-N//N-\-//-//<-S<`||O><||O>_(a0)OH>`\`=`/<\>`=<`\HO>`/\`/S<_qq4O><_pp4O>_(a0)HO

33. Sunset Yellow FCF

Molecular formula: C16H10N2Na2O7S2 CAS# 2783-94-0
Names
English:
1-p-Sulfophenylazo-2-naphthol-6-sulfonic Acid Disodium Salt
;
2-Naphthalenesulfonic acid, 6-hydroxy-5-((4-sulfophenyl)azo)-, disodium salt
;
2-Naphthalenesulfonic acid, 6-hydroxy-5-((p-sulfophenyl)azo)-, disodium salt
;
2-Naphthalenesulfonic acid, 6-hydroxy-5-[(4-sulfophenyl)azo]-, disodium salt
;
2-Naphthalenesulfonic acid, 6-hydroxy-5-[(E)-2-(4-sulfophenyl)diazenyl]-, sodium salt (1:2)(CAS)
;
2-naphthalenesulfonic acid, 6-hydroxy-5-[(E)-(4-sulfophenyl)azo]-, disodium salt
;
6-Hydroxy-5-[(4-sulfophenyl)azo]-2-naphthalenesulfonic Acid Disodium Salt
;
C.I. 15985
;
C.I. Food Yellow 3
;
Disodium 6-hydroxy-5-((4-sulphonatophenyl)azo)naphthalene-2-sulphonate
;
Disodium 6-hydroxy-5-[(E)-(4-sulfonatophenyl)diazenyl]-2-naphthalenesulfonate(IUPAC)
;
Disodium 6-hydroxy-5-[(E)-(4-sulfonatophenyl)diazenyl]naphthalene-2-sulfonate
;
E110
;
FD & C Yellow No. 6
;
FD&C Yellow 6
;
Orange Yellow S
;
Sunset Yellow FCF [Wiki]
;
disodium 6-hydroxy-5-[(Z)-(4-sulfonatophenyl)diazenyl]naphthalene-2-sulfonate
;
Na^+_(x1,y1,N0)O`^-/S<_qq4O><_pp4O>/`||/\\<|`//`\>/N\\N/`|/\\|`/<`\`|`\HO>||\//<`|`\\>\S<_qq4O><_pp4O>\O^-_(x1,y-1,N0)Na^+
NaS`O3/\//`|<`\\`/||>/N\\N/\/`||`\`//<`\HO>|\|\\/<\SO3Na>`||`\
Na`^+/0O`^-\S<_qq4O><_pp4O>\|\\/`|/\\|\O`\`/<`\`|`\`//>||N\NH|`//|\\</`||`\>|S<_qq4O><_pp4O>|O^-\0Na^+

34. Ponceau 4R

Molecular formula: C20H11N2Na3O10S3 CAS# 2611-82-7
Names
English:
1,3-Naphthalenedisulfonic acid, 7-hydroxy-8-((4-sulfo-1-naphthalenyl)azo)-, trisodium salt
;
1,3-Naphthalenedisulfonic acid, 7-hydroxy-8-[(4-sulfo-1-naphthyl)azo]-, trisodium salt
;
1,3-Naphthalenedisulfonic acid, 7-hydroxy-8-[(E)-2-(4-sulfo-1-naphthalenyl)diazenyl]-, sodium salt (1:3)(CAS)
;
7-Hydroxy-8-((4-sulfo-1-naphthalenyl)azo)-1,3-naphthalenedisulfonic acid trisodium salt
;
Acid Red 18
;
Brilliant Scarlet 3R
;
Brilliant Scarlet 4R
;
C.I. 16255
;
C.I. Acid Red 18
;
Cochineal Red A
;
E124
;
New Coccine
;
Ponceau 4R [Wiki]
;
Trisodium 7-hydroxy-8-[(E)-(4-sulfonato-1-naphthyl)diazenyl]-1,3-naphthalenedisulfonate(IUPAC)
;
Trisodium 7-hydroxy-8-[(E)-(4-sulfonato-1-naphthyl)diazenyl]naphthalene-1,3-disulfonate
;
trisodium 7-hydroxy-8-[(E)-(4-sulfonatonaphthalen-1-yl)diazenyl]naphthalene-1,3-disulfonate
;
|\<|@:s()`SO3^-_(x1.8,N0)Na^+@()>//`|</@s()>`\\`/`\\`/||<`/HO>\/`/|N\\N|\|\//`|`\\`/|`/<|@s()>`\\`|//
/`|`\\`/||\||@:sf(a,o)<_(A&a)S<_qq4O><_pp4O>_(a0)O&o^-_(a0,N0)Na&o^+>@(150,`)\//`|`\c\/N\\N/\/\||@sf(30)`/`\\@sf(150,`)`|/`|`\\`/|`|`\HO
/\O`\`|`\\`/|`/@:sx(o,n)<_(a-60)S<_qq4O><_pp4O>_(a0)O&o^-_(a60,N0)Na&n^+>@(,`)`\\`|@sx(`)//\|\||N\NH|\//\||`/`\\<`|>`/@sx(,`)`\\`|//

35. Allura Red AC

Molecular formula: C18H14N2Na2O8S2 CAS# 25956-17-6
Names
English:
1-[(6-Methoxy-4-sulfo-m-tolyl)azo]-2-naphthol-6-sulfonic Acid Disodium Salt
;
2-Naphthalenesulfonic acid, 6-hydroxy-5-((2-methoxy-5-methyl-4-sulfophenyl)azo)-, disodium salt, Food Red 17, C.I. 16035, FD&C Red 40
;
2-Naphthalenesulfonic acid, 6-hydroxy-5-[(2-methoxy-5-methyl-4-sulfophenyl)azo]-, disodium salt
;
2-Naphthalenesulfonic acid, 6-hydroxy-5-[(E)-2-(2-methoxy-5-methyl-4-sulfophenyl)diazenyl]-, sodium salt (1:2)(CAS)
;
2-naphthalenesulfonic acid, 6-hydroxy-5-[(E)-(2-methoxy-5-methyl-4-sulfophenyl)azo]-, disodium salt
;
6-Hydroxy-5-[(2-methoxy-5-methyl-4-sulfophenyl)azo]-2-naphthalenesulfonic Acid Disodium Salt
;
6-Hydroxy-5-[(6-methoxy-4-sulfo-m-tolyl)azo]-2-naphthalenesulfonic Acid Disodium Salt
;
Allura Red
;
Allura Red AC [Wiki]
;
C.I. 16035
;
C.I. Food Red 17
;
Disodium 6-hydroxy-5-[(E)-(2-methoxy-5-methyl-4-sulfonatophenyl)diazenyl]-2-naphthalenesulfonate(IUPAC)
;
Disodium 6-hydroxy-5-[(E)-(2-methoxy-5-methyl-4-sulfonatophenyl)diazenyl]naphthalene-2-sulfonate
;
E129
;
FD & C Red no. 40
;
FD&C Red 40
;
FD&C Red No. 40
;
Food Red 17
;
UNII:WZB9127XOA
;
Na^+|0O`^-# -S<//O><=O>\=\<-O/CH3>`//<`-`\\<`-H3C>/>\N=N\`//<`-HO>\=/`\\<`->/=\<`//`->-S<//O><=O>\O^-|0Na^+
`||`\<`|>`//<`\S<_qq4O><_pp4O>`\O`^-`|0Na^+>|\\<|O`/>/\N//N\|<`/HO>\\/`||`\`/c/`|//\<||`/>/S<_qq4O><_pp4O>/O^-`|0Na^+
Na`^+/0O`^-\S<_qq4O><_pp4O>\|\\/`|/\\|\O`\`/<`\`|`\`//>||N\NH|`/|\\</<\>`||`\`/`\O`/>|S<_qq4O><_pp4O>|O^-`/0Na`^+

36. Beryllon II

Molecular formula: C20H10N2Na4O15S4 CAS# 51550-25-5
Names
English:
2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-3-((8-hydroxy-3,6-disulfo-1-naphthalenyl)azo)-, tetrasodium salt
;
2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-3-[(8-hydroxy-3,6-disulfo-1-naphthalenyl)azo]-, tetrasodium salt
;
2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-3-[(E)-2-(8-hydroxy-3,6-disulfo-1-naphthalenyl)diazenyl]-, sodium salt (1:4)(CAS)
;
Beryllon 2
;
Beryllon II
;
Tetrasodium 4,5-dihydroxy-3-((8-hydroxy-3,6-disulphonato-1-naphthyl)azo)naphthalene-2,7-disulphonate
;
Tetrasodium 4,5-dihydroxy-3-[(E)-(8-hydroxy-3,6-disulfonato-1-naphthyl)diazenyl]-2,7-naphthalenedisulfonate(IUPAC)
;
Na^+/0O`^-\S<_qq4O><_pp4O>\|\\<|OH>/`|/\\</S<_qq4O><_pp4O>/O^-\0Na^+>|<`//<|OH>`\`|`\`//>\N//N\|\|`//<|S<_qq4O><_pp4O>|O^-\0Na^+>`\`||<`\HO>/\/`||<`\`//>/S<_qq4O><_pp4O>/O^-\0Na^+
Na^+/0O`^-\S<_qq4O><_pp4O>\/\\</OH>|`/<`\`||>||\<|S<_qq4O><_pp4O>|O^-\0Na^+>//`|`\c\/N<_(y-.5)H>\N//\|O`|/`|/\\</S<_qq4O><_pp4O>/O^-\0Na^+>|`//<|OH>`\`|`\`//<|>_(A-130)S<_qq4O><_pp4O>_(a0)O`^-_(a60,N0)Na^+

37. Beryllon III

Molecular formula: C20H20N3NaO8S2 CAS# 3627-04-1
Names
English:
2,7-Naphthalenedisulfonic acid, 4-[(E)-2-[4-(diethylamino)-2-hydroxyphenyl]diazenyl]-5-hydroxy-, sodium salt (1:1)(CAS)
;
Beryllon III
;
Beryllon III sodium salt
;
Sodium 4-{(E)-[4-(diethylamino)-2-hydroxyphenyl]diazenyl}-5-hydroxy-7-sulfo-2-naphthalenesulfonate(IUPAC)
;
Sodium 4-{(E)-[4-(diethylamino)-2-hydroxyphenyl]diazenyl}-5-hydroxy-7-sulfonaphthalene-2-sulfonate
;
H3C-\N<`/`-H3C>-//-</OH>\\<`/`=`\>-N\\N-\-\`//<\S<_qq4O><_pp4O>_(a0)OH>`-`\\<`-HO>/-/`\\<`-`//>/S<_qq4O><_pp4O>_(a0)O^-_(a60,N0)Na^+
HO\S<_qq4O><_pp4O>\/\\/\\</S<_qq4O><_pp4O>/OH>|`//<|OH>`\<`|>`//<`\`||>|N`//N|\|`//<|N<`/|>\|>`\`||/\/O^-\hNa^+

38. Dithizone

Molecular formula: C13H12N4S CAS# 60-10-6
Names
English:
(1E)-3-anilino-1-phenylimino-thiourea
;
(E)-N',2-Diphenyldiazenecarbothiohydrazide(IUPAC)
;
1,5-Diphenylthiocarbazone
;
1-anilino-3-phenyliminothiourea(IUPAC)
;
Dithizone [Wiki]
;
Methanethione, [(E)-2-phenyldiazenyl](2-phenylhydrazinyl)-(CAS)
;
NJZ2CJ4D6P
;
Phenyldiazenecarbothioic Acid 2-Phenylhydrazide
;
diphenylthiocarbazone
;
|`//`\`||/\\/N<_(y-.5)H>\N<_(y.5)H>/`|S|\N//N\|\\/`||`\`//
`-`\\/=\`//\N_qq6N\<`//S>-NH/HN-\\-//`\`=`/

39. Naphthylazoxine

Molecular formula: C19H13N3O4S CAS# 50539-65-6
Names
English:
(7E)-7-(1-Naphthylhydrazono)-8-oxo-7,8-dihydro-5-quinolinesulfonic acid(IUPAC)
;
(7Z)-7-(naphthalen-1-ylhydrazinylidene)-8-oxoquinoline-5-sulfonic acid(IUPAC)
;
5-Quinolinesulfonic acid, 7,8-dihydro-7-[2-(1-naphthalenyl)hydrazinylidene]-8-oxo-, (7E)-(CAS)
;
7-(1-Naphthylazo)-8-hydroxyquinoline-5-sulfonic acid
;
8-hydroxy-7-(1-naphthylazo)quinoline-5-sulphonic acid
;
NCI148354
;
Naphthylazoxine
;
`/`=<`/S<_qq4O><_pp4O>_(a0)HO>`\`=`\//-N\\<`/>-</OH>\\-N//N-\=/`\\`-<`//>`\//-\\`/
HO|S<=O><`=O>|\|\N//`|`\\`/|`/|O`|`\<`|//>`//N|NH`/`\\`/||\||\//`|`\\<`/>`|

40. PAN

Molecular formula: C15H11N3O CAS# 85-85-8
Names
English:
(1Z)-1-(pyridin-2-ylhydrazinylidene)naphthalen-2-one(IUPAC)
;
1-(2-Pyridinyldiazenyl)-2-naphthol(IUPAC)
;
1-(Pyridin-2-yldiazenyl)-2-naphthol
;
1-(pyridin-2-yldiazenyl)naphthalen-2-ol
;
2-Naphthalenol, 1-[2-(2-pyridinyl)diazenyl]-(CAS)
;
EINECS:201-637-9
;
PAN
;
|`//`\`||/N\\/N\\N/\|\\/`||`\`||`\`//<`\HO>|\/
/\\/`||`\`//<|>`\`//|`/O/\||N`/HN|\N||`/`\\`|//