Molecular formula
C23H22N4O2
186 compounds have this formula on CompoundList.
- Molar mass
- 386.45g/mol
- Monoisotopic mass
- 386.1743Da
- Atoms
- 51
- Elements
- 4
- Rings plus double bonds
- 15
The formula C23H22N4O2 describes a molecule made of 23 carbon atoms, 22 hydrogen atoms, 4 nitrogen atoms and 2 oxygen atoms. 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 × 2371.48%12.011 × 23 = 276.253 g/mol
- H Hydrogen × 225.74%1.008 × 22 = 22.176 g/mol
- N Nitrogen × 414.50%14.007 × 4 = 56.028 g/mol
- O Oxygen × 28.28%15.999 × 2 = 31.998 g/mol
Look up another formula
Compounds with the formula C23H22N4O2
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 186 compounds
N-(3-Imidazol-1-ylpropyl)-2-(3-methoxyphenyl)quinoline-4-carboxamide
CAS 389078-31-3C23H22N4O2
Fiscalin B
CAS 149008-35-5C23H22N4O2
![5-[3-(Benzylamino)-2-hydroxypropyl]-3-methyl-1-oxo-1,5-dihydropyrido[1,2-a]benzimidazole-4-carbonitrile chemical structure, C23H22N4O2, CAS 714210-78-3](/s/CNCNFFUSAODZCT-UHFFFAOYSA-N.svg)
5-[3-(Benzylamino)-2-hydroxypropyl]-3-methyl-1-oxo-1,5-dihydropyrido[1,2-a]benzimidazole-4-carbonitrile
CAS 714210-78-3C23H22N4O2
![N-[4-(4-Benzoyl-1-piperazinyl)phenyl]nicotinamide chemical structure, C23H22N4O2, CAS 876896-06-9](/s/UVDNNQFOHZEGIN-UHFFFAOYSA-N.svg)
N-[4-(4-Benzoyl-1-piperazinyl)phenyl]nicotinamide
CAS 876896-06-9C23H22N4O2
![6-(4-Methoxyphenyl)-9-(2-methylphenyl)-5,6,7,9-tetrahydro[1,2,4]triazolo[5,1-b]quinazolin-8(4H)-one chemical structure, C23H22N4O2, CAS 727394-34-5](/s/UQYVXKHOXAEXQJ-UHFFFAOYSA-N.svg)
6-(4-Methoxyphenyl)-9-(2-methylphenyl)-5,6,7,9-tetrahydro[1,2,4]triazolo[5,1-b]quinazolin-8(4H)-one
CAS 727394-34-5C23H22N4O2
![1-{[2-(3,4-Dimethoxyphenyl)ethyl]amino}-3-methylpyrido[1,2-a]benzimidazole-4-carbonitrile chemical structure, C23H22N4O2, CAS 400747-13-9](/s/MWYNEJVVRXYASN-UHFFFAOYSA-N.svg)
1-{[2-(3,4-Dimethoxyphenyl)ethyl]amino}-3-methylpyrido[1,2-a]benzimidazole-4-carbonitrile
CAS 400747-13-9C23H22N4O2
2-(1,3-Benzoxazol-2-ylamino)-7,7-dimethyl-4-phenyl-4,6,7,8-tetrahydroquinazolin-5(1H)-one
CAS 669752-60-7C23H22N4O2
![6,6-Dimethyl-9-(3-phenoxyphenyl)-5,6,7,9-tetrahydro[1,2,4]triazolo[5,1-b]quinazolin-8(4H)-one chemical structure, C23H22N4O2, CAS 669754-85-2](/s/ZYJWZSXMHUZEIN-UHFFFAOYSA-N.svg)
6,6-Dimethyl-9-(3-phenoxyphenyl)-5,6,7,9-tetrahydro[1,2,4]triazolo[5,1-b]quinazolin-8(4H)-one
CAS 669754-85-2C23H22N4O2
![6-Amino-4-(4-methoxyphenyl)-1-phenyl-3-propyl-1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile chemical structure, C23H22N4O2, CAS 371144-66-0](/s/MUPARMRIXAFNLQ-UHFFFAOYSA-N.svg)
6-Amino-4-(4-methoxyphenyl)-1-phenyl-3-propyl-1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile
CAS 371144-66-0C23H22N4O2
![2-(4-Hydroxyphenyl)-6,6-dimethyl-9-phenyl-4H,5H,6H,7H,8H,9H-[1,2,4]triazolo[3,2-b]quinazolin-8-one chemical structure, C23H22N4O2, CAS 540485-89-0](/s/GSSROZFPJXQEHO-UHFFFAOYSA-N.svg)
2-(4-Hydroxyphenyl)-6,6-dimethyl-9-phenyl-4H,5H,6H,7H,8H,9H-[1,2,4]triazolo[3,2-b]quinazolin-8-one
CAS 540485-89-0C23H22N4O2
![9-(4-Methoxyphenyl)-2-(o-tolyl)-5,6,7,9-tetrahydro-[1,2,4]triazolo[5,1-b]quinazolin-8(4H)-one chemical structure, C23H22N4O2, CAS 539840-86-3](/s/MQAHDYZQDLRFOP-UHFFFAOYSA-N.svg)
9-(4-Methoxyphenyl)-2-(o-tolyl)-5,6,7,9-tetrahydro-[1,2,4]triazolo[5,1-b]quinazolin-8(4H)-one
CAS 539840-86-3C23H22N4O2
DC-CPin711
CAS 2447559-21-7C23H22N4O2
Tnik-IN-7
CAS 1417795-24-4C23H22N4O2
Ro 23-3423
CAS 110996-51-5C23H22N4O2
![N-Cyclopentyl-2-(4-methylphenyl)-3-oxo-2H,3H,5H-pyrazolo[4,3-c]quinoline-8-carboxamide chemical structure, C23H22N4O2, CAS 1251571-99-9](/s/NHAHXPKPXMQWDN-UHFFFAOYSA-N.svg)
N-Cyclopentyl-2-(4-methylphenyl)-3-oxo-2H,3H,5H-pyrazolo[4,3-c]quinoline-8-carboxamide
CAS 1251571-99-9C23H22N4O2
N-(2-(1H-Indol-3-yl)ethyl)-2-(6-oxo-3-phenylpyridazin-1(6H)-yl)propanamide
CAS 1202974-23-9C23H22N4O2
Glycyl-L-tryptophan 2-naphthylamide
CAS 164802-32-8C23H22N4O2
![2-(4-Ethylphenyl)-8-(pyrrolidine-1-carbonyl)-2H-pyrazolo[4,3-c]quinolin-3(5H)-one chemical structure, C23H22N4O2, CAS 1251572-14-1](/s/LWXSEBUKTFKOQM-UHFFFAOYSA-N.svg)
2-(4-Ethylphenyl)-8-(pyrrolidine-1-carbonyl)-2H-pyrazolo[4,3-c]quinolin-3(5H)-one
CAS 1251572-14-1C23H22N4O2
1-(3-Cyanoquinolin-4-yl)-N-(3-methoxyphenyl)piperidine-4-carboxamide
CAS 1226434-02-1C23H22N4O2
![N-(4-(6-Methoxyimidazo[1,2-b]pyridazin-2-yl)phenyl)-2-phenylbutanamide chemical structure, C23H22N4O2, CAS 953216-37-0](/s/BNXFENYBXDROJI-UHFFFAOYSA-N.svg)
N-(4-(6-Methoxyimidazo[1,2-b]pyridazin-2-yl)phenyl)-2-phenylbutanamide
CAS 953216-37-0C23H22N4O2
![7-(3,4-Dimethylphenyl)-N-[(4-methoxyphenyl)methyl]pyrazolo[1,5-a]pyrimidine-3-carboxamide chemical structure, C23H22N4O2, CAS 1105224-85-8](/s/MAVGJOHCUSZSJB-UHFFFAOYSA-N.svg)
7-(3,4-Dimethylphenyl)-N-[(4-methoxyphenyl)methyl]pyrazolo[1,5-a]pyrimidine-3-carboxamide
CAS 1105224-85-8C23H22N4O2
N-Cyclopentyl-2-(3-(5-phenyl-1,3,4-oxadiazol-2-yl)-1H-indol-1-yl)acetamide
CAS 1021106-29-5C23H22N4O2
1-(3-Cyanoquinolin-4-yl)-N-(2-methoxyphenyl)piperidine-4-carboxamide
CAS 1207038-58-1C23H22N4O2
![2-(3,4-Dimethylphenyl)-8-(pyrrolidine-1-carbonyl)-2H,3H,5H-pyrazolo[4,3-C]quinolin-3-one chemical structure, C23H22N4O2, CAS 1359544-77-6](/s/IHFJGKFABVJVNX-UHFFFAOYSA-N.svg)
2-(3,4-Dimethylphenyl)-8-(pyrrolidine-1-carbonyl)-2H,3H,5H-pyrazolo[4,3-C]quinolin-3-one
CAS 1359544-77-6C23H22N4O2
- 2-[2-(3-Phenyl-1,2,4-oxadiazol-5-yl)-1H-pyrrol-1-yl]-N-(3-phenylpropyl)acetamide1775481-42-9C23H22N4O2
- 2-Amino-5-[3-(2-methoxy-phenyl)-1H-pyrrolo[2,3-b]pyridin-5-yl]-n,n-dimethyl-benzamide875638-86-1C23H22N4O2
- N-[2-(1H-Indol-3-yl)ethyl]-2-[4-(4-methylphenyl)-6-oxo-1,6-dihydropyrimidin-1-yl]acetamide1058197-94-6C23H22N4O2
- 3-(1-Methyl-2-oxo-2,3-dihydro-1H-imidazo[4,5-b]pyridin-6-yl)-N-(3-phenylpropyl)benzamide1355153-15-9C23H22N4O2
- 1-(4-Amino-2-methylphenyl)-5-[4-(1H-imidazol-1-yl)phenyl]-1H-pyrrole-2-propanoic acid1208315-51-8C23H22N4O2
- Pol I-IN-12765318-69-0C23H22N4O2
- 5-{2-Hydroxy-3-[(4-methylphenyl)amino]propyl}-3-methyl-1-oxo-1,5-dihydropyrido[1,2-a]benzimidazole-4-carbonitrile849913-18-4C23H22N4O2
- 4-(3-Phenoxybenzylidene)-N-(pyridazin-3-yl)piperidine-1-carboxamide1255380-37-0C23H22N4O2
- N-[6-Methyl-2-(4-methylphenyl)benzotriazol-5-yl]-2-(4-methylphenoxy)acetamide347335-36-8C23H22N4O2
- 1-Naphthalen-1-yl-3-(4-pyridin-2-ylpiperazin-1-yl)pyrrolidine-2,5-dione339197-03-4C23H22N4O2
- 4'-((7-Oxo-5-propyl-1,7-dihydropyrazolo(1,5-a)pyrimidin-6-yl)methyl)(1,1'-biphenyl)-2-carboximidic acid167375-27-1C23H22N4O2
- 9-(4-Methoxyphenyl)-6-(2-methylphenyl)-5,6,7,9-tetrahydro[1,2,4]triazolo[5,1-b]quinazolin-8(4H)-one727395-00-8C23H22N4O2
- N-[6-Methyl-2-(4-methylphenyl)-2H-1,2,3-benzotriazol-5-yl]-2-(2-methylphenoxy)acetamide6129-99-3C23H22N4O2
- N-(4-{7-Cyano-4-[(morpholin-4-yl)methyl]quinolin-2-yl}phenyl)acetamide2143072-85-7C23H22N4O2
- 7,7-Dimethyl-2-phenyl-4-(pyridin-3-yl)-4,7,8,9-tetrahydro-1H-pyrazolo[3,4-b]quinoline-3,5(2H,6H)-dione667431-37-0C23H22N4O2
- 6-(4-Methoxyphenyl)-2-methyl-9-phenyl-5,6,7,9-tetrahydro[1,2,4]triazolo[5,1-b]quinazolin-8(4H)-one879622-31-8C23H22N4O2
- 9-(4-Methoxyphenyl)-2-methyl-6-phenyl-5,6,7,9-tetrahydro[1,2,4]triazolo[5,1-b]quinazolin-8(4H)-one879613-33-9C23H22N4O2
- 3-Isopropoxy-N-(6-methyl-2-phenyl-2H-1,2,3-benzotriazol-5-yl)benzamide352347-51-4C23H22N4O2
- 8,9-Dimethoxy-5,5-dimethyl-3-(quinolin-2-yl)-5,6-dihydro[1,2,4]triazolo[3,4-a]isoquinoline332413-26-0C23H22N4O2
- 2-(2,4-Dimethylphenoxy)-N-(6-methyl-2-phenylbenzotriazol-5-yl)acetamide347337-56-8C23H22N4O2
- N-[2-(4-Ethoxyphenyl)-6-methylbenzotriazol-5-yl]-2-phenylacetamide347337-05-7C23H22N4O2
- 2-(3,4-Dimethylphenoxy)-N-(6-methyl-2-phenylbenzotriazol-5-yl)acetamide347337-92-2C23H22N4O2
- N'-[(3Z)-2-Oxo-1,2-dihydro-3H-indol-3-ylidene]-3-(1,2,3,4-tetrahydro-9H-carbazol-9-yl)propanehydrazide347368-45-0C23H22N4O2
- N-[2-(4-Ethoxyphenyl)benzotriazol-5-yl]-3,4-dimethylbenzamide364742-96-1C23H22N4O2
- N-[2-(1-Phenylethyl)-3,4-dihydro-1H-pyrazino[1,2-a]benzimidazol-8-yl]furan-2-carboxamide825659-72-1C23H22N4O2
- 5-(4-(2-Methylbenzoyl)piperazin-1-yl)-2-(m-tolyl)oxazole-4-carbonitrile946377-58-8C23H22N4O2
- 6-(3,4-Dimethylphenyl)-2-((3-(3,4-dimethylphenyl)-1,2,4-oxadiazol-5-yl)methyl)pyridazin-3(2H)-one1207046-19-2C23H22N4O2
- 6-Amino-3-methyl-1-phenyl-4-(2-propan-2-yloxyphenyl)-4H-pyrano[2,3-c]pyrazole-5-carbonitrile445390-60-3C23H22N4O2
- N-(1-Methoxypropan-2-yl)-5,7-diphenylpyrazolo[1,5-a]pyrimidine-2-carboxamide833443-54-2C23H22N4O2
- 6-Amino-4-(4-isopropylphenyl)-3-(3-methoxyphenyl)-2,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile848740-28-3C23H22N4O2
- 9-(3-Hydroxyphenyl)-6,6-dimethyl-2-phenyl-5,6,7,9-tetrahydro-[1,2,4]triazolo[5,1-b]quinazolin-8(4H)-one457951-49-4C23H22N4O2
- N-(1-Benzyl-3,5-dimethylpyrazol-4-yl)-5-methyl-3-phenyl-1,2-oxazole-4-carboxamide515151-23-2C23H22N4O2
- 1-Benzyl-7-methyl-2-(pyrrolidine-1-carbonyl)pyrido[1,2-a]pyrrolo[2,3-d]pyrimidin-4(1H)-one900870-32-8C23H22N4O2
- 2-{[(E)-{1-[4-(Dimethylamino)phenyl]-2,5-dimethyl-1H-pyrrol-3-yl}methylidene]amino}-1H-isoindole-1,3(2H)-dione340306-08-3C23H22N4O2
- (Z)-N-(1-(1-Cyano-2-(isobutylamino)-2-oxoethylidene)-1H-isoindol-3-yl)-2-methylbenzamide900871-70-7C23H22N4O2
- N-(2,4-Dimethylphenyl)-2-[2-(4-methylphenyl)-4-oxopyrazolo[1,5-a]pyrazin-5(4H)-yl]acetamide941920-96-3C23H22N4O2
- N-(2,6-Dimethylphenyl)-2-[2-(4-methylphenyl)-4-oxopyrazolo[1,5-a]pyrazin-5(4H)-yl]acetamide941920-98-5C23H22N4O2
- N-(2,3-Dimethylphenyl)-2-[2-(4-methylphenyl)-4-oxopyrazolo[1,5-a]pyrazin-5(4H)-yl]acetamide941894-43-5C23H22N4O2
- N-(4-Methylphenyl)-3-oxo-2-phenyl-5-propyl-2H,3H,5H-pyrazolo[4,3-c]pyridine-7-carboxamide923175-15-9C23H22N4O2
- 1-([1]Benzofuro[3,2-d]pyrimidin-4-yl)-N-(3-methylphenyl)piperidine-3-carboxamide1112292-88-2C23H22N4O2
- 2-(3-Ethyl-4-oxo-7-phenyl-3,4-dihydro-5H-pyrrolo[3,2-d]pyrimidin-5-yl)-N-(2-methylphenyl)acetamide1251552-46-1C23H22N4O2
- 2-(3-Ethyl-4-oxo-7-phenyl-3,4-dihydro-5H-pyrrolo[3,2-d]pyrimidin-5-yl)-N-methyl-N-phenylacetamide1251617-55-6C23H22N4O2
- N-Benzyl-2-(3-ethyl-4-oxo-7-phenyl-3,4-dihydro-5H-pyrrolo[3,2-d]pyrimidin-5-yl)acetamide1251638-87-5C23H22N4O2
- 4-[2-(1H-Indol-1-yl)acetamido]-N-(quinolin-8-yl)butanamide1251557-89-7C23H22N4O2
- (3-(1H-Pyrrol-1-yl)-2-(m-tolyl)pyrrolo[3,4-c]pyrazol-5(2H,4H,6H)-yl)(2,5-dimethylfuran-3-yl)methanone1334369-08-2C23H22N4O2
- 2,3-Piperazinedione, 1-benzyl-4-(p-((2-pyridyl)amino)benzyl)-77917-52-3C23H22N4O2
- N-[3,5-Dimethyl-1-[(3-methylphenyl)methyl]pyrazol-4-yl]-5-phenyl-1,2-oxazole-3-carboxamide1005682-83-6C23H22N4O2
- 1-Benzyl-9-methyl-2-(pyrrolidine-1-carbonyl)pyrido[1,2-a]pyrrolo[2,3-d]pyrimidin-4(1H)-one900895-84-3C23H22N4O2
- 4-Butoxy-N-(3-imidazo[1,2-a]pyrimidin-2-ylphenyl)benzamide863020-13-7C23H22N4O2
- N-(3,4-Dimethylphenyl)-2-[2-(4-methylphenyl)-4-oxopyrazolo[1,5-a]pyrazin-5(4H)-yl]acetamide941963-51-5C23H22N4O2
- N-(2,5-Dimethylphenyl)-2-[2-(4-methylphenyl)-4-oxopyrazolo[1,5-a]pyrazin-5(4H)-yl]acetamide941963-54-8C23H22N4O2
- N-(2-Ethylphenyl)-2-[2-(4-methylphenyl)-4-oxopyrazolo[1,5-a]pyrazin-5(4H)-yl]acetamide941963-72-0C23H22N4O2
- N-(3-Ethylphenyl)-2-[2-(4-methylphenyl)-4-oxopyrazolo[1,5-a]pyrazin-5(4H)-yl]acetamide941894-55-9C23H22N4O2
- N-(4-Ethylphenyl)-2-[2-(4-methylphenyl)-4-oxopyrazolo[1,5-a]pyrazin-5(4H)-yl]acetamide941921-06-8C23H22N4O2
- 2-[2-(4-Methylphenyl)-4-oxopyrazolo[1,5-a]pyrazin-5(4H)-yl]-N-(2-phenylethyl)acetamide941963-93-5C23H22N4O2
- 1-(5-Oxo-1-phenylpyrrolidin-3-yl)-3-(4-(phenylamino)phenyl)urea894010-42-5C23H22N4O2
- 5-(4-(4-Methylbenzoyl)piperazin-1-yl)-2-(p-tolyl)oxazole-4-carbonitrile946377-20-4C23H22N4O2
- [7-(4-Benzyl-[1,2,3]triazol-1-yl)-6,7,8,9-tetrahydropyrido[1,2-a]indol-10-yl]-acetic acid1242272-06-5C23H22N4O2
- 1-([1]Benzofuro[3,2-d]pyrimidin-4-yl)-N-(4-methylphenyl)piperidine-3-carboxamide1112429-12-5C23H22N4O2
- 2-(3-Ethyl-4-oxo-7-phenyl-3,4-dihydro-5H-pyrrolo[3,2-d]pyrimidin-5-yl)-N-(4-methylphenyl)acetamide1251698-40-4C23H22N4O2
- 2-(3-Ethyl-4-oxo-7-phenyl-3,4-dihydro-5H-pyrrolo[3,2-d]pyrimidin-5-yl)-N-(3-methylphenyl)acetamide1251631-97-6C23H22N4O2
- N-(3-Methylbenzyl)-2-{2-[3-(4-methylphenyl)-1,2,4-oxadiazol-5-yl]-1H-pyrrol-1-yl}acetamide1260951-67-4C23H22N4O2
- N-(4-Methylbenzyl)-2-{2-[3-(4-methylphenyl)-1,2,4-oxadiazol-5-yl]-1H-pyrrol-1-yl}acetamide1260919-90-1C23H22N4O2
- 1-(2-(Imidazo[1,2-a]pyridin-2-yl)phenyl)-3-(4-methoxyphenethyl)urea1798465-84-5C23H22N4O2
- 2-(1H-Benzo[d]imidazol-1-yl)-1-(4-(quinolin-8-yloxy)piperidin-1-yl)ethanone2034277-48-8C23H22N4O2
- N-[2-(2-Methoxyphenoxy)ethyl]-N-methyl-2-(pyridin-3-yl)quinazolin-4-amine2059981-56-3C23H22N4O2
- N-[2-(4-Methoxyphenyl)-6-methylbenzotriazol-5-yl]-3,5-dimethylbenzamide701967-06-8C23H22N4O2
- N-[2-(4-Ethoxyphenyl)-6-methylbenzotriazol-5-yl]-2-methylbenzamide431908-76-8C23H22N4O2
- 6-(4-Methoxyphenyl)-9-(3-methylphenyl)-5,6,7,9-tetrahydro[1,2,4]triazolo[5,1-b]quinazolin-8-ol879471-95-1C23H22N4O2
- 1H-Purine-2,6-dione, 3,7-dihydro-8-(2-(1,1'-biphenyl)-4-ylethenyl)-1,3-diethyl-, (E)-155271-93-5C23H22N4O2
- N-(5-{Imidazo[1,2-a]pyrimidin-2-yl}-2-methoxyphenyl)-4-phenylbutanamide862811-04-9C23H22N4O2
- N-(4-Isopropylphenyl)-5-methyl-3-oxo-2-phenyl-3,5-dihydro-2H-pyrazolo[4,3-c]pyridine-7-carboxamide923246-42-8C23H22N4O2
- N-(3-(6-Methoxyimidazo[1,2-b]pyridazin-2-yl)phenyl)-2-phenylbutanamide953149-17-2C23H22N4O2
- 1-Ethyl-1-[[3-(3-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]-3-naphthalen-1-ylurea890333-37-6C23H22N4O2
- (2E)-2-Cyano-3-[3-(4-methoxyphenyl)-1H-pyrazol-4-yl]-N-[4-(propan-2-yl)phenyl]prop-2-enamide896528-86-2C23H22N4O2
- N1-(2-cyanophenyl)-N2-(2-(dimethylamino)-2-(naphthalen-1-yl)ethyl)oxalamide941977-05-5C23H22N4O2
Frequently asked questions
What is the molar mass of C23H22N4O2?
The molar mass of C23H22N4O2 is 386.45 g/mol, calculated from standard atomic weights for 23 carbon atoms, 22 hydrogen atoms, 4 nitrogen atoms and 2 oxygen atoms. The monoisotopic mass is 386.1743 Da.
How many compounds have the formula C23H22N4O2?
CompoundList lists 186 compounds with the molecular formula C23H22N4O2, including N-(3-Imidazol-1-ylpropyl)-2-(3-methoxyphenyl)quinoline-4-carboxamide, Fiscalin B, 5-[3-(Benzylamino)-2-hydroxypropyl]-3-methyl-1-oxo-1,5-dihydropyrido[1,2-a]benzimidazole-4-carbonitrile. 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 C23H22N4O2?
C23H22N4O2 has a degree of unsaturation of 15. 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.