Molecular formula
C20H21N3O2S
324 compounds have this formula on CompoundList.
- Molar mass
- 367.47g/mol
- Monoisotopic mass
- 367.1354Da
- Atoms
- 47
- Elements
- 5
- Rings plus double bonds
- 12
The formula C20H21N3O2S describes a molecule made of 20 carbon atoms, 21 hydrogen atoms, 3 nitrogen atoms, 2 oxygen atoms and 1 sulfur atom. It is written in Hill notation: carbon first, then hydrogen, then the other elements in alphabetical order. The formula tells you which atoms are present, not how they are connected, which is why several different chemicals can share it.
Elemental composition
- C Carbon × 2065.37%12.011 × 20 = 240.220 g/mol
- H Hydrogen × 215.76%1.008 × 21 = 21.168 g/mol
- N Nitrogen × 311.44%14.007 × 3 = 42.021 g/mol
- O Oxygen × 28.71%15.999 × 2 = 31.998 g/mol
- S Sulfur × 18.72%32.06 × 1 = 32.060 g/mol
Look up another formula
Compounds with the formula C20H21N3O2S
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 324 compounds
6-(4-Morpholinyl)-3-(2-phenylethyl)-2-sulfanylidene-1H-quinazolin-4-one
CAS 689766-51-6C20H21N3O2S
![3-[[(2,3-Dimethylanilino)-sulfanylidenemethyl]amino]-1H-indole-2-carboxylic acid ethyl ester chemical structure, C20H21N3O2S, CAS 686736-57-2](/s/ZHDCEOMEDYWREW-UHFFFAOYSA-N.svg)
3-[[(2,3-Dimethylanilino)-sulfanylidenemethyl]amino]-1H-indole-2-carboxylic acid ethyl ester
CAS 686736-57-2C20H21N3O2S
![N-[4-(Piperidin-1-yl)phenyl]quinoline-8-sulfonamide chemical structure, C20H21N3O2S, CAS 305373-02-8](/s/MMRMMXVTDBOYTG-UHFFFAOYSA-N.svg)
N-[4-(Piperidin-1-yl)phenyl]quinoline-8-sulfonamide
CAS 305373-02-8C20H21N3O2S
8-((4-Benzylpiperazin-1-yl)sulfonyl)quinoline
CAS 324779-79-5C20H21N3O2S
![8,9-Dimethoxy-3-thiophen-2-ylspiro[6H-[1,2,4]triazolo[3,4-a]isoquinoline-5,1'-cyclopentane] chemical structure, C20H21N3O2S, CAS 352448-28-3](/s/PMVRBPGFRAAYNA-UHFFFAOYSA-N.svg)
8,9-Dimethoxy-3-thiophen-2-ylspiro[6H-[1,2,4]triazolo[3,4-a]isoquinoline-5,1'-cyclopentane]
CAS 352448-28-3C20H21N3O2S
RefChem:381683
CAS 5693-51-6C20H21N3O2S
![2-[(4-Cyano-1-methyl-5,6,7,8-tetrahydroisoquinolin-3-yl)sulfanyl]-N-(2-methoxyphenyl)acetamide chemical structure, C20H21N3O2S, CAS 404863-80-5](/s/HLWCAIKBEONNBV-UHFFFAOYSA-N.svg)
2-[(4-Cyano-1-methyl-5,6,7,8-tetrahydroisoquinolin-3-yl)sulfanyl]-N-(2-methoxyphenyl)acetamide
CAS 404863-80-5C20H21N3O2S
![2-[(4,6,7-Trimethylquinazolin-2-yl)sulfanyl]ethyl phenylcarbamate chemical structure, C20H21N3O2S, CAS 489416-26-4](/s/OEKQBOSRQSNZJK-UHFFFAOYSA-N.svg)
2-[(4,6,7-Trimethylquinazolin-2-yl)sulfanyl]ethyl phenylcarbamate
CAS 489416-26-4C20H21N3O2S
![2-({[5-Methyl-2-(4-methylphenyl)-1,3-oxazol-4-yl]methyl}thio)-N-(pyridin-3-ylmethyl)acetamide chemical structure, C20H21N3O2S, CAS 901751-83-5](/s/SBTNHMJDUXPJLD-UHFFFAOYSA-N.svg)
2-({[5-Methyl-2-(4-methylphenyl)-1,3-oxazol-4-yl]methyl}thio)-N-(pyridin-3-ylmethyl)acetamide
CAS 901751-83-5C20H21N3O2S
![1-(3-Methylphenyl)-3-[(4-methyl-5,6,7,8-tetrahydroquinazolin-2-yl)sulfanyl]pyrrolidine-2,5-dione chemical structure, C20H21N3O2S, CAS 578759-71-4](/s/XZFREYGDERKRBO-UHFFFAOYSA-N.svg)
1-(3-Methylphenyl)-3-[(4-methyl-5,6,7,8-tetrahydroquinazolin-2-yl)sulfanyl]pyrrolidine-2,5-dione
CAS 578759-71-4C20H21N3O2S
![(5Z)-5-[[4-(Dimethylamino)phenyl]methylidene]-4-(4-ethoxyanilino)-2-thiazolone chemical structure, C20H21N3O2S, CAS 1164527-23-4](/s/NZPIMYMXRCTYEO-AQTBWJFISA-N.svg)
(5Z)-5-[[4-(Dimethylamino)phenyl]methylidene]-4-(4-ethoxyanilino)-2-thiazolone
CAS 1164527-23-4C20H21N3O2S
7,7-Dimethyl-2-methylsulfanyl-3-m-tolyl-3,5,7,8-tetrahydro-6-oxa-1,3,9-triaza-anthracen-4-one
CAS 489413-64-1C20H21N3O2S
N-(1,5-Dimethyl-3-oxo-2-phenylpyrazol-4-yl)-4,5,6,7-tetrahydro-1-benzothiophene-2-carboxamide
CAS 717870-55-8C20H21N3O2S
![4-Methyl-N-[2-[[(6-methylpyridin-2-yl)amino]methyl]phenyl]benzenesulfonamide chemical structure, C20H21N3O2S, CAS 692277-23-9](/s/OLEUWYQLZSCQMV-UHFFFAOYSA-N.svg)
4-Methyl-N-[2-[[(6-methylpyridin-2-yl)amino]methyl]phenyl]benzenesulfonamide
CAS 692277-23-9C20H21N3O2S
![Ethyl 3-[(2,5-dimethylphenyl)carbamothioylamino]-1H-indole-2-carboxylate chemical structure, C20H21N3O2S, CAS 686736-58-3](/s/UJSVRVVEAOOZFQ-UHFFFAOYSA-N.svg)
Ethyl 3-[(2,5-dimethylphenyl)carbamothioylamino]-1H-indole-2-carboxylate
CAS 686736-58-3C20H21N3O2S
2-Morpholin-4-yl-N-(5-naphthalen-1-ylmethyl-thiazol-2-yl)-acetamide
CAS 501349-39-9C20H21N3O2S
4-Benzooxazol-2-yl-piperidine-1-carbothioic acid (2-methoxy-phenyl)-amide
CAS 605628-65-7C20H21N3O2S
![N-(6-Acetyl-3-cyano-4,5,6,7-tetrahydrothieno[2,3-c]pyridin-2-yl)-2-(2,4-dimethylphenyl)acetamide chemical structure, C20H21N3O2S, CAS 900000-50-2](/s/VOXRZYOTJBTQCC-UHFFFAOYSA-N.svg)
N-(6-Acetyl-3-cyano-4,5,6,7-tetrahydrothieno[2,3-c]pyridin-2-yl)-2-(2,4-dimethylphenyl)acetamide
CAS 900000-50-2C20H21N3O2S
![N-Methyl-N-[(4-oxo-3,4-dihydroquinazolin-2-yl)methyl]-5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophene-2-carboxamide chemical structure, C20H21N3O2S, CAS 924234-47-9](/s/ZPNYLOHDQYVGMY-UHFFFAOYSA-N.svg)
N-Methyl-N-[(4-oxo-3,4-dihydroquinazolin-2-yl)methyl]-5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophene-2-carboxamide
CAS 924234-47-9C20H21N3O2S
![2-[(3-Cyano-6,7,8,9-tetrahydro-5H-cyclohepta[b]pyridin-2-yl)sulfanyl]-N-(4-methoxyphenyl)acetamide chemical structure, C20H21N3O2S, CAS 328275-61-2](/s/GMFYLSKMMWFGIO-UHFFFAOYSA-N.svg)
2-[(3-Cyano-6,7,8,9-tetrahydro-5H-cyclohepta[b]pyridin-2-yl)sulfanyl]-N-(4-methoxyphenyl)acetamide
CAS 328275-61-2C20H21N3O2S
(Z)-N-(4-((3-Ethyl-4-(4-methoxyphenyl)thiazol-2(3H)-ylidene)amino)phenyl)acetamide
CAS 402945-70-4C20H21N3O2S
![1-Ethyl-8-(4-Ethylphenyl)-5-Methyl-1,5-Dihydropyrazolo[4,3-C][2,1]benzothiazine 4,4-Dioxide chemical structure, C20H21N3O2S, CAS 1426683-30-8](/s/LWMFYSSKMYKGNI-UHFFFAOYSA-N.svg)
1-Ethyl-8-(4-Ethylphenyl)-5-Methyl-1,5-Dihydropyrazolo[4,3-C][2,1]benzothiazine 4,4-Dioxide
CAS 1426683-30-8C20H21N3O2S
![N-(2,3-Dimethylphenyl)-2-[1-(3-methoxyphenyl)imidazol-2-yl]sulfanylacetamide chemical structure, C20H21N3O2S, CAS 688335-70-8](/s/SUSKYLIDMQPAIK-UHFFFAOYSA-N.svg)
N-(2,3-Dimethylphenyl)-2-[1-(3-methoxyphenyl)imidazol-2-yl]sulfanylacetamide
CAS 688335-70-8C20H21N3O2S
N-(2-Ethoxyphenyl)-2-((1-(m-tolyl)-1H-imidazol-2-yl)thio)acetamide
CAS 851131-34-5C20H21N3O2S
- N-(4-Ethylphenyl)-2-((1-(4-methoxyphenyl)-1H-imidazol-2-yl)thio)acetamide688336-07-4C20H21N3O2S
- (2Z,5Z)-5-(4-(Dimethylamino)benzylidene)-3-(2-hydroxyethyl)-2-(phenylimino)thiazolidin-4-one324054-74-2C20H21N3O2S
- (Z)-1-Allyl-5-((1,2,3,5,6,7-hexahydropyrido[3,2,1-ij]quinolin-9-yl)methylene)-2-thioxodihydropyrimidine-4,6(1H,5H)-dione371220-22-3C20H21N3O2S
- N-Cyclopentyl-2-[7-(4-methylphenyl)-4-oxothieno[3,2-d]pyrimidin-3(4H)-yl]acetamide1207029-92-2C20H21N3O2S
- N-[2-(p-Cinnamylamino)ethyl]-5-isoquinolone Sulfonamide130964-40-8C20H21N3O2S
- (Z)-N-(4-(4-Methoxyphenyl)-3-morpholinothiazol-2(3H)-ylidene)aniline886906-75-8C20H21N3O2S
- 3-(2-Oxo-2-(piperidin-1-yl)ethyl)-7-(p-tolyl)thieno[3,2-d]pyrimidin-4(3H)-one1207013-24-8C20H21N3O2S
- 4-((Z)-((Z)-(3-Ethyl-4-(p-tolyl)thiazol-2(3H)-ylidene)hydrazono)methyl)-2-methoxyphenol620543-49-9C20H21N3O2S
- N-Benzyl-4-(4-methoxyphenyl)-6-methyl-2-thioxo-1,2,3,4-tetrahydropyrimidine-5-carboxamide439136-86-4C20H21N3O2S
- N-(2-(Cyclopropanecarbonyl)-1,2,3,4-tetrahydroisoquinolin-7-yl)-2-(methylthio)nicotinamide1210405-92-7C20H21N3O2S
- 2-(((5-Methyl-2-(o-tolyl)oxazol-4-yl)methyl)thio)-5,6,7,8-tetrahydroquinazolin-4-ol902444-54-6C20H21N3O2S
- 2-((1-(2-Methoxyethyl)-5-phenyl-1H-imidazol-2-yl)thio)-N-phenylacetamide1206988-27-3C20H21N3O2S
- (1-Amino-5-(furan-2-yl)-6,7,8,9-tetrahydrothieno[2,3-c]isoquinolin-2-yl)(pyrrolidin-1-yl)methanone883515-45-5C20H21N3O2S
- N-[2-(2-Methoxyphenyl)ethyl]-2-[2-(phenylamino)-1,3-thiazol-4-yl]acetamide1040676-51-4C20H21N3O2S
- N-[2-(4-Methoxyphenyl)ethyl]-2-[2-(phenylamino)-1,3-thiazol-4-yl]acetamide1040676-57-0C20H21N3O2S
- 2-Cyclopentyl-N-(3-(7-methyl-5-oxo-5H-thiazolo[3,2-a]pyrimidin-3-yl)phenyl)acetamide1021039-61-1C20H21N3O2S
- 1-(3,4-Dimethoxyphenyl)-N-[2-[(3,5-dimethyl-1H-pyrazol-4-yl)sulfanyl]phenyl]methanimine5482-49-5C20H21N3O2S
- 4-(6-Oxo-3-(p-tolyl)pyridazin-1(6H)-yl)-N-(thiophen-2-ylmethyl)butanamide946322-20-9C20H21N3O2S
- N-(3,4-Dimethylphenyl)-4-[6-oxo-3-(thiophen-2-yl)-1,6-dihydropyridazin-1-yl]butanamide1021259-79-9C20H21N3O2S
- 3,5-Dimethyl-N-(3-(6-oxo-3-(thiophen-2-yl)pyridazin-1(6H)-yl)propyl)benzamide1021252-63-0C20H21N3O2S
- 2-(4-Isopropylphenyl)-N-(5-((phenylthio)methyl)-1,3,4-oxadiazol-2-yl)acetamide923480-41-5C20H21N3O2S
- (4-(6-Methoxybenzo[d]thiazol-2-yl)piperazin-1-yl)(p-tolyl)methanone897468-23-4C20H21N3O2S
- (2,5-Dimethylphenyl)methyl 5-methyl-1-[3-(methylsulfanyl)phenyl]-1H-1,2,3-triazole-4-carboxylate946306-86-1C20H21N3O2S
- 8-(4-Methyl-piperazin-1-yl)-3phenylsulfonylquinoline607742-54-1C20H21N3O2S
- N,N,6'-Trimethyl-3-(4-(methylsulfonyl)phenyl)-[2,3'-bipyridin]-5-amine646459-39-4C20H21N3O2S
- RefChem:3823036233-13-2C20H21N3O2S
- 4-(3-Methoxyphenyl)-6-methyl-2-thioxo-N-(p-tolyl)-1,2,3,4-tetrahydropyrimidine-5-carboxamide313702-10-2C20H21N3O2S
- 2-{[5-(4-tert-Butylphenyl)-4-phenyl-4H-1,2,4-triazol-3-yl]sulfanyl}acetic acid312522-54-6C20H21N3O2S
- 3-(Benzenesulfonyl)-4-(4-methylpiperazin-1-yl)quinoline866844-25-9C20H21N3O2S
- N-(4-Methoxyphenyl)-6-methyl-4-(4-methylphenyl)-2-thioxo-1,2,3,4-tetrahydropyrimidine-5-carboxamide333767-86-5C20H21N3O2S
- N-(2,4-Dimethylphenyl)-2-methyl-4-thioxo-3,4,5,6-tetrahydro-2H-2,6-methano-1,3,5-benzoxadiazocine-11-carboxamide1005251-52-4C20H21N3O2S
- N-(2-Methoxyphenyl)-6-methyl-2-thioxo-4-(p-tolyl)-1,2,3,4-tetrahydropyrimidine-5-carboxamide313702-16-8C20H21N3O2S
- 5-Phenyl-2-(propan-2-ylsulfanyl)-3H,4H,5H,6H,7H,8H,9H,10H-pyrimido[4,5-b]quinoline-4,6-dione7062-24-0C20H21N3O2S
- 2-Benzimidazolinone, 1-(1-(3-(2-thenoyl)propyl)-1,2,3,6-tetrahydro-4-pyridyl)-94685-92-4C20H21N3O2S
- N-(1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)-2-[(4-methylphenyl)sulfanyl]acetamide385394-89-8C20H21N3O2S
- Methyl 4-(4-benzylpiperidino)thieno[2,3-d]pyrimidine-6-carboxylate866020-40-8C20H21N3O2S
- Ethyl 4-[(7-methyl-5,6,7,8-tetrahydro[1]benzothieno[2,3-d]pyrimidin-4-yl)amino]benzoate315684-02-7C20H21N3O2S
- 2-(3-Oxo-3,4-dihydro-2H-1,4-benzothiazin-2-yl)-N-[4-(pyrrolidin-1-yl)phenyl]acetamide329795-83-7C20H21N3O2S
- 4-(2-Methoxyphenyl)-6-methyl-N-(2-methylphenyl)-2-thioxo-1,2,3,4-tetrahydro-5-pyrimidinecarboxamide312621-08-2C20H21N3O2S
- N-[5-(4-Methoxybenzyl)-1,3,4-thiadiazol-2-yl]-2-phenylbutanamide510736-54-6C20H21N3O2S
- 3-((2,2-Dimethyl(3-oxaindan-4-yloxy))methyl)-4-(4-methylphenyl)-1,2,4-triazoline-5-thione497060-85-2C20H21N3O2S
- 4-tert-Butyl-N-[5-(2-methoxyphenyl)-1,3,4-thiadiazol-2-yl]benzamide328561-03-1C20H21N3O2S
- N-[3-Cyano-4-methyl-5-(piperidine-1-carbonyl)thiophen-2-yl]-2-phenylacetamide321529-76-4C20H21N3O2S
- 1-Naphthalen-2-ylsulfonyl-4-(pyridin-2-ylmethyl)piperazine462096-20-4C20H21N3O2S
- N-[4-(6-Methyl-1,3-benzothiazol-2-yl)phenyl]-2-(morpholin-4-yl)acetamide315677-64-6C20H21N3O2S
- Ethyl 4-[2-(1H-indol-3-yl)ethylcarbamothioylamino]benzoate6197-08-6C20H21N3O2S
- 4-Methyl-2-(1-methylhydrazino)-3-[(4-methylphenyl)sulfonyl]-6-phenylpyridine341967-37-1C20H21N3O2S
- N-(2,4-Dimethylphenyl)-4-(4-hydroxyphenyl)-6-methyl-2-thioxo-1,2,3,4-tetrahydropyrimidine-5-carboxamide431069-03-3C20H21N3O2S
- N-Cyclopropyl-2-[2-(2-phenoxyethylthio)benzimidazolyl]acetamide942865-49-8C20H21N3O2S
- Benzo[c][1,2,5]thiadiazol-5-yl(4-((benzyloxy)methyl)piperidin-1-yl)methanone1226441-08-2C20H21N3O2S
- N-[[4-(Diethylamino)phenyl]carbamothioyl]-1-benzofuran-2-carboxamide356078-44-9C20H21N3O2S
- 4-(4-Methoxyphenyl)-6-methyl-N-(4-methylphenyl)-2-sulfanylidene-3,4-dihydro-1H-pyrimidine-5-carboxamide5550-66-3C20H21N3O2S
- 4-(4-Methoxyphenyl)-6-methyl-N-(2-methylphenyl)-2-sulfanylidene-3,4-dihydro-1H-pyrimidine-5-carboxamide312735-04-9C20H21N3O2S
- Ethyl 2-((4-(phenethylamino)quinazolin-2-yl)thio)acetate422532-39-6C20H21N3O2S
- 1-[4-(1,3-Benzothiazol-2-yl)piperazin-1-yl]-3-phenoxypropan-1-one681163-02-0C20H21N3O2S
- 2-(3-Methylquinoxalin-2-yl)sulfanyl-N-(2-propan-2-yloxyphenyl)acetamide727670-65-7C20H21N3O2S
- (E)-3-(4-Phenylpiperazin-1-yl)-2-tosylacrylonitrile885186-30-1C20H21N3O2S
- N-(2-Methoxy-5-methylphenyl)-2-((1-methyl-5-phenyl-1H-imidazol-2-yl)thio)acetamide921816-53-7C20H21N3O2S
- N-(4-Ethoxyphenyl)-2-(1-methyl-5-phenylimidazol-2-yl)sulfanylacetamide338426-28-1C20H21N3O2S
- 2-[(4,6,7-Trimethylquinazolin-2-yl)sulfanyl]ethyl 2-aminobenzoate385420-53-1C20H21N3O2S
- 2-[(3-Ethyl-4-oxo-3,4-dihydroquinazolin-2-yl)sulfanyl]-N-(4-ethylphenyl)acetamide525582-55-2C20H21N3O2S
- 2-((2-Methoxyphenyl)amino)-N-(5-(4-methylbenzyl)thiazol-2-yl)acetamide854005-61-1C20H21N3O2S
- 2-(3-Benzyl-1-ethyl-5-oxo-2-sulfanylideneimidazolidin-4-yl)-N-phenylacetamide1008011-15-1C20H21N3O2S
- Hydantoin, 5,5-diphenyl-3-(morpholinomethyl)-2-thio-13110-03-7C20H21N3O2S
- Ethyl 1-(5-phenylthieno[2,3-d]pyrimidin-4-yl)piperidine-3-carboxylate423144-20-1C20H21N3O2S
- 4-(4-Oxo-2-thioxo-1,2-dihydroquinazolin-3(4H)-yl)-N-phenethylbutanamide443353-44-4C20H21N3O2S
- N-(3,5-Dimethylphenyl)-2-((1-(3-methoxyphenyl)-1H-imidazol-2-yl)thio)acetamide688335-71-9C20H21N3O2S
- N-[[5-(1,3-Benzoxazol-2-yl)-2-methylphenyl]carbamothioyl]-3-methylbutanamide429641-28-1C20H21N3O2S
- 1-[(2-Methoxy-1-naphthyl)sulfinyl]-4-(2-pyridinyl)piperazine477762-10-0C20H21N3O2S
- N-(2-tert-Butyl-5-oxo-4,6-dihydrothieno[3,4-c]pyrazol-3-yl)naphthalene-1-carboxamide1007195-25-6C20H21N3O2S
- N-(2-(tert-Butyl)-5-oxido-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)-2-naphthamide1007193-28-3C20H21N3O2S
- 2-[(3,4-Dihydro-4-oxo-3-phenyl-2-quinazolinyl)thio]-N-(1,1-dimethylethyl)acetamide345988-25-2C20H21N3O2S
- 3-Amino-N-(4-methoxyphenyl)-6,7,8,9-tetrahydro-5H-cyclohepta[b]thieno[3,2-e]pyridine-2-carboxamide425682-99-1C20H21N3O2S
- N-(2,3-Dimethylphenyl)-4-(4-hydroxyphenyl)-6-methyl-2-sulfanylidene-3,4-dihydro-1H-pyrimidine-5-carboxamide374086-68-7C20H21N3O2S
- N-(2-Ethoxyphenyl)-6-methyl-4-phenyl-2-sulfanylidene-3,4-dihydro-1H-pyrimidine-5-carboxamide372971-31-8C20H21N3O2S
- Furan-2-yl-[4-[[2-(4-methylphenyl)-1,3-thiazol-4-yl]methyl]piperazin-1-yl]methanone902730-87-4C20H21N3O2S
Frequently asked questions
What is the molar mass of C20H21N3O2S?
The molar mass of C20H21N3O2S is 367.47 g/mol, calculated from standard atomic weights for 20 carbon atoms, 21 hydrogen atoms, 3 nitrogen atoms, 2 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 367.1354 Da.
How many compounds have the formula C20H21N3O2S?
CompoundList lists 324 compounds with the molecular formula C20H21N3O2S, including 6-(4-Morpholinyl)-3-(2-phenylethyl)-2-sulfanylidene-1H-quinazolin-4-one, 3-[[(2,3-Dimethylanilino)-sulfanylidenemethyl]amino]-1H-indole-2-carboxylic acid ethyl ester, N-[4-(Piperidin-1-yl)phenyl]quinoline-8-sulfonamide. Compounds that share a formula are isomers. They contain the same atoms arranged differently, so their properties, uses and prices can be very different.
What is the degree of unsaturation of C20H21N3O2S?
C20H21N3O2S has a degree of unsaturation of 12. That is the total number of rings and pi bonds (a double bond counts as one, a triple bond as two) in any structure with this formula.