System to describe the chemical formulas for WEB.
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Examples of structural formulas

Examples of any structural formulas
You can use the Substances reference to find structural formulas by name, molecular formula (empirical formula) or categories of chemicals.

amino acid

H3N^+-C-COO^-;H|#C|$itemColor1(#800){R}
H3N^+-C-COO^-;H|#C|$itemColor1(#800){R}

Benzene

H_(y0.5)C\\CH|CH`//C`\HC`||HC/#2; #5_(y0.5)H
H_(y0.5)C\\CH|CH`//C`\HC`||HC/#2; #5_(y0.5)H

Orotic acid

O||C\CH||C`/N`\C`|HN/#2; #4\COOH; #5|H; #6`//O
O||C\CH||C`/N`\C`|HN/#2; #4\COOH; #5|H; #6`//O

Azulene

`|_p7_p7_p7_p7_p7_p7_o_(y-1,N0)_q_q_q_q_o
`|_p7_p7_p7_p7_p7_p7_o_(y-1,N0)_q_q_q_q_o

Adenine

`/N`\\HC`|N//<`|NH2>\||\N<_(y0.7)H>/CH`||N_#7
`/N`\\HC`|N//<`|NH2>\||\N<_(y0.7)H>/CH`||N_#7

Acetochlor

|<\>`//`\`||/<`|`\>\\/N<`|/O\/>\<||O>/\Cl
|<\>`//`\`||/<`|`\>\\/N<`|/O\/>\<||O>/\Cl

Alpha-cypermethrin

Cl\<|Cl>//\_(x0.5,y1)<`/><\>_(x0.5,y-1)<`->/<`||O>\O/<`|C`|||N>\/\\</O\/\\|`//`\`||>|`//`\`||
Cl\<|Cl>//\_(x0.5,y1)<`/><\>_(x0.5,y-1)<`->/<`||O>\O/<`|C`|||N>\/\\</O\/\\|`//`\`||>|`//`\`||

1-cyclohexanecarbonyl-9H-carbazole-4-sulfonic acid

||`/`\\`|//\/NH\||<_#2>\<|SO3H>//`|`\\<`/>`|<`\\O>/`|/\|`/`\
||`/`\\`|//\/NH\||<_#2>\<|SO3H>//`|`\\<`/>`|<`\\O>/`|/\|`/`\

1H-phenalene-4-carboxylic acid

`|/\\|\</COOH>||`/`\\`|<//>`\`//|\\/
`|/\\|\</COOH>||`/`\\`|<//>`\`//|\\/

tritosulfuron

`\N`=<`\CF3>`/N\\<`/O`-H3C>-N//-N<|H>/C<`||O>\N<|H>-S-\\-//`\`=<`\CF3>`/; O||#S||O
`\N`=<`\CF3>`/N\\<`/O`-H3C>-N//-N<|H>/C<`||O>\N<|H>-S-\\-//`\`=<`\CF3>`/; O||#S||O

6-methyloxane-2,3,4,5-tetrol

-O\<|OH>`/<|HO>`-<_(y-0.9)OH>`\<|HO>/`|CH3
-O\<|OH>`/<|HO>`-<_(y-0.9)OH>`\<|HO>/`|CH3

4-(1H-inden-1-yl)-3-oxobutanoic acid

`||_p</-<//O>\-COOH>_p_pp_p`/`\\`|//\
`||_p</-<//O>\-COOH>_p_pp_p`/`\\`|//\

2-{[(2Z)-4-(carboxymethoxy)-2,3-bis(4-methoxybutoxy)but-2-en-1-yl]oxy}acetic acid

HOOC-\O-\:a-/-O/-COOH; H3C-O-/-/-O/#a-\O-\-\-O-CH3
HOOC-\O-\:a-/-O/-COOH; H3C-O-/-/-O/#a-\O-\-\-O-CH3

Acetyl-CoA

H3C-C<`||O>\S-CH2-CH2-N<|H>-C<`||O>-CH2-CH2-N<|H>-C<`||O>-CH<|OH>-C<`|CH3><|CH3>-CH2-O-P<`||O><|O^->-O-P<`||O><|O^->-O-CH2_(y1.5)_(x.7,y.7,w+)<`/O|P:a|O^->_(x1,w2)<\OH>_(x.7,y-.7,w-)<_(y-2.4)N<`\`/N`\\`|N//<`|NH2>\:x||>/`||N_#x>_(x-1.2,y-0.8)O_(x-1.2,y0.8);O^-# -#a=O
H3C-C<`||O>\S-CH2-CH2-N<|H>-C<`||O>-CH2-CH2-N<|H>-C<`||O>-CH<|OH>-C<`|CH3><|CH3>-CH2-O-P<`||O><|O^->-O-P<`||O><|O^->-O-CH2_(y1.5)_(x.7,y.7,w+)<`/O|P:a|O^->_(x1,w2)<\OH>_(x.7,y-.7,w-)<_(y-2.4)N<`\`/N`\\`|N//<`|NH2>\:x||>/`||N_#x>_(x-1.2,y-0.8)O_(x-1.2,y0.8);O^-# -#a=O

Heme-B

$itemColor1(red)Fe^ii_(x-$32,y-$32)N`-<`\\:a`-H3C>`/\\<`/:b`-H3C>-N<_(H)#Fe>||<`/<`\\#b>|`/|COOH>\//<\:c|\|HOOC>`|N<`\#Fe>-<\<`//#c>-CH3>//`\</:d-//CH2>`=N<_(H)#Fe>`|</<\\#d>`|CH3>`\\`/<|>`\\<`/#a>`|//CH2
$itemColor1(red)Fe^ii_(x-$32,y-$32)N`-<`\\:a`-H3C>`/\\<`/:b`-H3C>-N<_(H)#Fe>||<`/<`\\#b>|`/|COOH>\//<\:c|\|HOOC>`|N<`\#Fe>-<\<`//#c>-CH3>//`\</:d-//CH2>`=N<_(H)#Fe>`|</<\\#d>`|CH3>`\\`/<|>`\\<`/#a>`|//CH2

Nicotinamide adenine dinucleotide phosphate

O||<\NH2>`/|`//N^+`\`||/\\; #N|_(x-1,y1,w+)<|OH>_(x-1,w2)<|HO>_(x-1,y-1,w-)<_(x1.5,y-0.5)O_(x1.5,y0.5)>|`/O`-P`=O;O^-|#-3|O|P|O^-; O=#-3-O\|_(x1,y1,w+)<|HO>_(x1,w2)<|O|P:a|O^->_(x1,y-1,w-)<_(x-1.5,y-0.5)O_(x-1.5,y0.5)>`|N:b; O=#a-O^-; /<`|NH2>\\N|`//N`\`||_qN_qq_q#b_q
O||<\NH2>`/|`//N^+`\`||/\\; #N|_(x-1,y1,w+)<|OH>_(x-1,w2)<|HO>_(x-1,y-1,w-)<_(x1.5,y-0.5)O_(x1.5,y0.5)>|`/O`-P`=O;O^-|#-3|O|P|O^-; O=#-3-O\|_(x1,y1,w+)<|HO>_(x1,w2)<|O|P:a|O^->_(x1,y-1,w-)<_(x-1.5,y-0.5)O_(x-1.5,y0.5)>`|N:b; O=#a-O^-; /<`|NH2>\\N|`//N`\`||_qN_qq_q#b_q

9-(9H-fluoren-9-ylidene)-9H-fluorene

`||/\\|`//`\`/:a`\`|`\`//|\\/`|-#2; ||:c`/`\\`|//\/:b\|\//`|`\\`/|_#c; #a||#b
`||/\\|`//`\`/:a`\`|`\`//|\\/`|-#2; ||:c`/`\\`|//\/:b\|\//`|`\\`/|_#c; #a||#b

2-[4-(trimethylamino)phenyl]-1$l^{4}-chromen-1-ylium

`//`\`||/\\|\//`|</\\/`||</N^+<`|H3C><\CH3>/CH3>`\`//|>`\\O^+`/
`//`\`||/\\|\//`|</\\/`||</N^+<`|H3C><\CH3>/CH3>`\`//|>`\\O^+`/

Calcium bi-thymolat (may be...)

`/<|<`/H3C>\CH3>`\\`|//<`|CH3>\||-O-Ca-O-`|//<`|CH3>\||`/<|<`/H3C>\CH3>`\\
`/<|<`/H3C>\CH3>`\\`|//<`|CH3>\||-O-Ca-O-`|//<`|CH3>\||`/<|<`/H3C>\CH3>`\\

Phenolphthalein

HO|\\|`//<`\`||/>|:x|O`/<||O>`\`//`\`||/\\<|>_#x-/=\<-OH>`//`-`\\
HO|\\|`//<`\`||/>|:x|O`/<||O>`\`//`\`||/\\<|>_#x-/=\<-OH>`//`-`\\

Adenosine triphosphate

O^-# -P|O^-; O||#-3-O-P|O^-;O||#-3-O-P|O^-;O||#-3-O-|_(x1,y1,W+)<|HO>_(x1)<|OH>_(x1,y-1,W-):a_(x-1.5,y-0.7)O_(x-1.5,y0.7);||_pN<|#a>_p_ppN_p/<`|H2N>\\N|`//N`\
O^-# -P|O^-; O||#-3-O-P|O^-;O||#-3-O-P|O^-;O||#-3-O-|_(x1,y1,W+)<|HO>_(x1)<|OH>_(x1,y-1,W-):a_(x-1.5,y-0.7)O_(x-1.5,y0.7);||_pN<|#a>_p_ppN_p/<`|H2N>\\N|`//N`\

Adenosine triphosphate (color)

$L(1.1)$color(#00A)C||C_qN:a_qCH_qqN_q`\C<`|NH2>`//N|HC\\N<_(y0.8,N0)"adenine">/; $color(#A00)CH<|OH_(x.5,y.5,N0)"ribose">_(x-1)HC<|HO>_pHC<_(x-1,y-1)#a>_pO_pCH_p;#-1_(y-1.5)H2C-$color(#A0A)O-P</OH_(y-1.6,N0)"three residues of"_(y0.6)"phosphoric acid"><=O>\O-P</OH><=O>\O-P</OH><=O>\OH
$L(1.1)$color(#00A)C||C_qN:a_qCH_qqN_q`\C<`|NH2>`//N|HC\\N<_(y0.8,N0)"adenine">/; $color(#A00)CH<|OH_(x.5,y.5,N0)"ribose">_(x-1)HC<|HO>_pHC<_(x-1,y-1)#a>_pO_pCH_p;#-1_(y-1.5)H2C-$color(#A0A)O-P</OH_(y-1.6,N0)"three residues of"_(y0.6)"phosphoric acid"><=O>\O-P</OH><=O>\O-P</OH><=O>\OH

Folic acid

HOOC/`|/<`|HOOC>\wN<|H>/`|O|\//\||<`/`\\`|>\NH|`/|`//N`\`|`\\<`|OH>`/N||<`/H2N>\N//`|0/N\\
HOOC/`|/<`|HOOC>\wN<|H>/`|O|\//\||<`/`\\`|>\NH|`/|`//N`\`|`\\<`|OH>`/N||<`/H2N>\N//`|0/N\\

Lactose

$L(0.8)_(x-1.2,y-1.2)O_(x-2)<|H><_(y-1)CH2OH>_(x-1.2,y1.2)<`|HO><|H>_(x1.2,y1.2,w+)<`|OH><|H>_(x2,w2)<`|H><|OH>_(x1.2,y-1.2,w-)<|H>`|_(x.8,y.8)O_(x.8,y.8)`|<`|H>_(x1.2,y1.2,w+)<`|OH><|H>_(x2,w2)<`|H><|OH>_(x1.2,y-1.2,w-)<`|OH><|H>_(x-1.2,y-1.2)O_(x-2)<_(y-1)CH2OH><|H>_(x-1.2,y1.2)
$L(0.8)_(x-1.2,y-1.2)O_(x-2)<|H><_(y-1)CH2OH>_(x-1.2,y1.2)<`|HO><|H>_(x1.2,y1.2,w+)<`|OH><|H>_(x2,w2)<`|H><|OH>_(x1.2,y-1.2,w-)<|H>`|_(x.8,y.8)O_(x.8,y.8)`|<`|H>_(x1.2,y1.2,w+)<`|OH><|H>_(x2,w2)<`|H><|OH>_(x1.2,y-1.2,w-)<`|OH><|H>_(x-1.2,y-1.2)O_(x-2)<_(y-1)CH2OH><|H>_(x-1.2,y1.2)

Sucrose

$L(0.9)_(x-1.2,y-1.2)O_(x-2):a5<|H><_(y-1)CH2OH>_(x-1.2,y1.2):a4<`|HO><|H>_(x1.2,y1.2,w+):a3<`|OH><|H>_(x2,w2):a2<`|H><|OH>_(x1.2,y-1.2,w-)<`|H>|-O-`|<_(y-1.5)CH2OH>_(x1.2,y1.2,w+)<`|H><|OH>_(x1.6,w2)<`|HO><|H>_(x1.2,y-1.2,w-)<|CH2OH><`|H>_(x-2,y-.8)O_(x-2,y.8); $color(gray)$L(0.3)#a5`\0"5"; #a4`-0"4"; #a3`/0"3"; #a2\0"2"; #1-0"1"
$L(0.9)_(x-1.2,y-1.2)O_(x-2):a5<|H><_(y-1)CH2OH>_(x-1.2,y1.2):a4<`|HO><|H>_(x1.2,y1.2,w+):a3<`|OH><|H>_(x2,w2):a2<`|H><|OH>_(x1.2,y-1.2,w-)<`|H>|-O-`|<_(y-1.5)CH2OH>_(x1.2,y1.2,w+)<`|H><|OH>_(x1.6,w2)<`|HO><|H>_(x1.2,y-1.2,w-)<|CH2OH><`|H>_(x-2,y-.8)O_(x-2,y.8); $color(gray)$L(0.3)#a5`\0"5"; #a4`-0"4"; #a3`/0"3"; #a2\0"2"; #1-0"1"

Ni(dmgH)2

$L(1.4)H3C\|_qqN<|OH:a>_(P-5,C)Ni_qN<_(A-90,C)O:b>_qq|0`/H3C;CH3`/|_ppN<_(A90,C)O:c>_p#Ni_(P5,C-)N<`|HO:d>_pp|0\CH3; #b_(H)#d; #a_(H)#c
$L(1.4)H3C\|_qqN<|OH:a>_(P-5,C)Ni_qN<_(A-90,C)O:b>_qq|0`/H3C;CH3`/|_ppN<_(A90,C)O:c>_p#Ni_(P5,C-)N<`|HO:d>_pp|0\CH3; #b_(H)#d; #a_(H)#c

Lead Dithizonate

`/`-`\/-\_o-NH_(x1.5)N<_(x.8,y1.2)C:a_(x-1,y1.2)N_(x-1.5,N2)N`-`/`-`\/-\_o>_(x2.5)Pb<_(x-.8,y1.2,C-)S\\#a>_(x2.5)N<_(x-.8,y1.2)C<_(x-.9,N2)S\v#Pb>_(x.8,y1.2)N_(x1.5,N2)N-/-\`/`-`\_o>_(x1.5)HN-/-\`/`-`\_o
`/`-`\/-\_o-NH_(x1.5)N<_(x.8,y1.2)C:a_(x-1,y1.2)N_(x-1.5,N2)N`-`/`-`\/-\_o>_(x2.5)Pb<_(x-.8,y1.2,C-)S\\#a>_(x2.5)N<_(x-.8,y1.2)C<_(x-.9,N2)S\v#Pb>_(x.8,y1.2)N_(x1.5,N2)N-/-\`/`-`\_o>_(x1.5)HN-/-\`/`-`\_o

Curcumin complex of Boron

`/<\O-CH3>`-`\:a/-\_o-O_(x.8,y-1.2)BOH_(x-.8,y-1.2)O`-`/`-`\:b/-</O-CH3>\_o;#a`-C<|H>`=C<|H>`-C<||O>_(x-.8,y-1.2)H2C_(x.8,y-1.2)C<`||O>-C<`|H>=C<`|H>_#b
`/<\O-CH3>`-`\:a/-\_o-O_(x.8,y-1.2)BOH_(x-.8,y-1.2)O`-`/`-`\:b/-</O-CH3>\_o;#a`-C<|H>`=C<|H>`-C<||O>_(x-.8,y-1.2)H2C_(x.8,y-1.2)C<`||O>-C<`|H>=C<`|H>_#b

Testosteron

|<|dH>_q_q_q<_(A-65,w+)OH>_q<`|w>`\`/|<|dH>\<`|wH>/`/0|`/`\`|/`/0<`|w>`\`/|<`//O>\//
|<|dH>_q_q_q<_(A-65,w+)OH>_q<`|w>`\`/|<|dH>\<`|wH>/`/0|`/`\`|/`/0<`|w>`\`/|<`//O>\//

Calixarene

_(A-15,N2)<_(A45)O`/H>_q6_qq6_q6<_(A-135){R}>_qq6_q6_(x-.5,y1.2)_(x.5,y1.2)_(A15,N2)<_(A-45)O<_(H)#H>_(A60)H:h2>_p6:c2_pp6_p6<_(A135){R}>_pp6_p6; #c2_(x1.2,y.5)_(x1.2,y-.5)_(A45)_qq6<_(A45){R}>_q6_qq6:c3_q6<_(A-135)O<_(H)#h2>/H:h3>_qq6; #c3_(x.5,y-1.2)_(x-.5,y-1.2)_(A-45,N2)_q6<_(A-45){R}>_qq6_q6:c4_qq6<_(A135)O<_(H)#h3>_(A-115)H_(H)#O>_q6; #c4_(x-1.2,y-.5)_(x-1.2,y.5)
_(A-15,N2)<_(A45)O`/H>_q6_qq6_q6<_(A-135){R}>_qq6_q6_(x-.5,y1.2)_(x.5,y1.2)_(A15,N2)<_(A-45)O<_(H)#H>_(A60)H:h2>_p6:c2_pp6_p6<_(A135){R}>_pp6_p6; #c2_(x1.2,y.5)_(x1.2,y-.5)_(A45)_qq6<_(A45){R}>_q6_qq6:c3_q6<_(A-135)O<_(H)#h2>/H:h3>_qq6; #c3_(x.5,y-1.2)_(x-.5,y-1.2)_(A-45,N2)_q6<_(A-45){R}>_qq6_q6:c4_qq6<_(A135)O<_(H)#h3>_(A-115)H_(H)#O>_q6; #c4_(x-1.2,y-.5)_(x-1.2,y.5)

Calixarene

$L(.8){R}|\||`/<|OH>`\\<`|//>_(x-1.5,y.5)_(x-.5,y1.5)`=`/<`-{R}>\\-<//<`\>-OH>_(x.5,y1.5)_(x1.5,y.5)|\\<|{R}>/`||<`\<`|OH>`//>_(x1.5,y-.5)_(x.5,y-1.5)-//<-{R}>`\`=<`/<`-HO>\\>_(x-.5,y-1.5)_(x-1.5,y-.5) + ({Me}2N)3P -> $L(.8)`||`\<`|{R}>`//|<\\<|O:o1>/>_(x-1.5,y.5)_(x-.5,y1.5)`=`/<`-{R}>\\-<//<-O:o2>`\>_(x.5,y1.5)_(x1.5,y.5)<//>|\\<|{R}>/`||<`\`|O:o3>_(x1.5,y-.5)_(x.5,y-1.5)-//<-{R}>`\`=<`/<`-O:o4>\\>_(x-.5,y-1.5)_(x-1.5,y-.5); #o1_(y1.5)$atomColor1(red)P^-_#o3; #o2_#P_#o4; H_(A-60,L1.5)#P_(A-60,L1.5)N(+)H{Me}2 + 2HN{Me}2
$L(.8){R}|\||`/<|OH>`\\<`|//>_(x-1.5,y.5)_(x-.5,y1.5)`=`/<`-{R}>\\-<//<`\>-OH>_(x.5,y1.5)_(x1.5,y.5)|\\<|{R}>/`||<`\<`|OH>`//>_(x1.5,y-.5)_(x.5,y-1.5)-//<-{R}>`\`=<`/<`-HO>\\>_(x-.5,y-1.5)_(x-1.5,y-.5) + ({Me}2N)3P -> $L(.8)`||`\<`|{R}>`//|<\\<|O:o1>/>_(x-1.5,y.5)_(x-.5,y1.5)`=`/<`-{R}>\\-<//<-O:o2>`\>_(x.5,y1.5)_(x1.5,y.5)<//>|\\<|{R}>/`||<`\`|O:o3>_(x1.5,y-.5)_(x.5,y-1.5)-//<-{R}>`\`=<`/<`-O:o4>\\>_(x-.5,y-1.5)_(x-1.5,y-.5); #o1_(y1.5)$atomColor1(red)P^-_#o3; #o2_#P_#o4; H_(A-60,L1.5)#P_(A-60,L1.5)N(+)H{Me}2 + 2HN{Me}2

Confirmation test for Al3+ with Alizarin

||`/`\\`|//\/`|O|\|\//`|</OH>`\\<`|OH>`/|`/|O`|`\ + Al(OH)3 -> ||`/`\\`|//\/`|O|\|\//`|</OH>`\\<`|O_(x-$32,y-1)Al`-HO>`/|`/|O`|`\; #O/v#Al-OH + H2O
||`/`\\`|//\/`|O|\|\//`|</OH>`\\<`|OH>`/|`/|O`|`\ + Al(OH)3 -> ||`/`\\`|//\/`|O|\|\//`|</OH>`\\<`|O_(x-$32,y-1)Al`-HO>`/|`/|O`|`\; #O/v#Al-OH + H2O

Example of a typical humic acid

$L(.8)HO/-<\HO>//`\`=`/\\; #-3/=<\HO>/`\\`-<`\HOOC>`//\; #-5-O\=</OH>\`//:a\N-<\{R}>/COOH; #a`-`\\/; #a`-0`/O\-/; #-1`-`/`-O-\=/-O`-`\; #-3\O-\:b`/HN\<-{R}>`/`-O-\NH`/{};#b=/`\\`-`//; #-3-_pN_qq:c1_q:c2_q:c3_q; #c1/0#c2_pp6_p6:d_pp6_p6; #c2\0#c1_q6_pp6O; #d-\=<\O-{}>/`\\:e`-`//; #e`-0`\<`=O>/<`\\O>-\\`/; #-1-//:f`\`-<`\HO><`/>-\0_qO_q:f1_q:f2_q; #f1\#f2_p6<`\HO>_pp6<`|HOOC>_p6</COOH>_pp6_p6; $L(.9)#c3`|O`|C<=O>`|HC<-OH>`|HC<-OH>`|CH<`-HO>`|HC<-OH>`|/O`/`\H
$L(.8)HO/-<\HO>//`\`=`/\\; #-3/=<\HO>/`\\`-<`\HOOC>`//\; #-5-O\=</OH>\`//:a\N-<\{R}>/COOH; #a`-`\\/; #a`-0`/O\-/; #-1`-`/`-O-\=/-O`-`\; #-3\O-\:b`/HN\<-{R}>`/`-O-\NH`/{};#b=/`\\`-`//; #-3-_pN_qq:c1_q:c2_q:c3_q; #c1/0#c2_pp6_p6:d_pp6_p6; #c2\0#c1_q6_pp6O; #d-\=<\O-{}>/`\\:e`-`//; #e`-0`\<`=O>/<`\\O>-\\`/; #-1-//:f`\`-<`\HO><`/>-\0_qO_q:f1_q:f2_q; #f1\#f2_p6<`\HO>_pp6<`|HOOC>_p6</COOH>_pp6_p6; $L(.9)#c3`|O`|C<=O>`|HC<-OH>`|HC<-OH>`|CH<`-HO>`|HC<-OH>`|/O`/`\H

Model structure of humic acid (Stevenson 1982)

$L(.9)`/<|OH>`\\<`/HO>`|//<`|COOH>\||-`||/<`|COOH>\\|:a`//<|OH>`\; #a-O-$slope(60)//<`\HO>-\\-N<`|CH<`-{R}>`|COOH>\-/O:a`/\<-O:b>`//`-<`//O>`\/`/`-O`\/`/0`=`\; #b-\-//:c`\`=<`\O`\H`/h#a>`/\|NH|CH<`-{R}>|C<=O-0"(peptide)">|NH|v; #c-CH\N=/`/0\`/O/-//:d`\`=`\CH2_(x-1)HC<`/>`|O`|C<=O>`|(HCOH)4<-0"(sugar)">`|HC=O; $slope()#d-O-`||/\/`|/\\:e|\/`|0//<`|OH>\</COOH>||<\COOH>`/`\\`|`-#e|0`/`\`|`\<`||O/hH\O|>`/`\O\|\|`/<|OH>`\
$L(.9)`/<|OH>`\\<`/HO>`|//<`|COOH>\||-`||/<`|COOH>\\|:a`//<|OH>`\; #a-O-$slope(60)//<`\HO>-\\-N<`|CH<`-{R}>`|COOH>\-/O:a`/\<-O:b>`//`-<`//O>`\/`/`-O`\/`/0`=`\; #b-\-//:c`\`=<`\O`\H`/h#a>`/\|NH|CH<`-{R}>|C<=O-0"(peptide)">|NH|v; #c-CH\N=/`/0\`/O/-//:d`\`=`\CH2_(x-1)HC<`/>`|O`|C<=O>`|(HCOH)4<-0"(sugar)">`|HC=O; $slope()#d-O-`||/\/`|/\\:e|\/`|0//<`|OH>\</COOH>||<\COOH>`/`\\`|`-#e|0`/`\`|`\<`||O/hH\O|>`/`\O\|\|`/<|OH>`\

Fulvic acid

$slope(45)COOH`\CHOH`/C|O`|`\CH2`-CH2`\$slope()`|`\\<`|COOH>`/|0`//<|HOOC>`\<`/HOOC>`||<`\HOOC>/<`|OH>\\|\<|OH>//`|0$slope(45)/CH2\C|O`|/CH<`|CH2OH>\CH</CH3>\CH2-COOH
$slope(45)COOH`\CHOH`/C|O`|`\CH2`-CH2`\$slope()`|`\\<`|COOH>`/|0`//<|HOOC>`\<`/HOOC>`||<`\HOOC>/<`|OH>\\|\<|OH>//`|0$slope(45)/CH2\C|O`|/CH<`|CH2OH>\CH</CH3>\CH2-COOH