Molecular formula
C25H30N2O5
1,424 compounds have this formula on CompoundList.
- Molar mass
- 438.52g/mol
- Monoisotopic mass
- 443.2469Da
- Atoms
- 62
- Elements
- 4
- Rings plus double bonds
- 12
The formula C25H30N2O5 describes a molecule made of 25 carbon atoms, 30 hydrogen atoms, 2 nitrogen atoms and 5 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 × 2568.47%12.011 × 25 = 300.275 g/mol
- H Hydrogen × 306.90%1.008 × 30 = 30.240 g/mol
- N Nitrogen × 26.39%14.007 × 2 = 28.014 g/mol
- O Oxygen × 518.24%15.999 × 5 = 79.995 g/mol
Look up another formula
Compounds with the formula C25H30N2O5
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 1,424 compounds
Quinapril
CAS 85441-61-8C25H30N2O5
Cyclohexyl 2,7,7-trimethyl-4-(4-nitrophenyl)-5-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carboxylate
CAS 313967-18-9C25H30N2O5
5-Hydroxy-8-methoxy-7-(4-(4-methylpiperazin-1-yl)butoxy)-2-phenyl-4H-chromen-4-one
CAS 1175077-25-4C25H30N2O5
![3-(3,4-Dimethoxyphenyl)-8-[(4-ethylpiperazin-1-yl)methyl]-7-hydroxy-2-methyl-4H-chromen-4-one chemical structure, C25H30N2O5, CAS 846580-49-2](/s/RKCLKKWMRRPVGZ-UHFFFAOYSA-N.svg)
3-(3,4-Dimethoxyphenyl)-8-[(4-ethylpiperazin-1-yl)methyl]-7-hydroxy-2-methyl-4H-chromen-4-one
CAS 846580-49-2C25H30N2O5
1-(2-(Diethylamino)ethyl)-3-hydroxy-5-(4-hydroxyphenyl)-4-(4-methoxy-2-methylbenzoyl)-1H-pyrrol-2(5H)-one
CAS 371928-78-8C25H30N2O5
1-(2-Dimethylamino-ethyl)-4-(2,5-dimethyl-benzoyl)-5-(3-ethoxy-4-hydroxy-phenyl)-3-hydroxy-1,5-dihydro-pyrrol-2-one
CAS 609326-08-1C25H30N2O5
![1-[3-(Diethylamino)propyl]-4-(2-furylcarbonyl)-3-hydroxy-5-(4-prop-2-enyloxyph enyl)-3-pyrrolin-2-one chemical structure, C25H30N2O5, CAS 636991-70-3](/s/PAYLZSPKYZBHQL-UHFFFAOYSA-N.svg)
1-[3-(Diethylamino)propyl]-4-(2-furylcarbonyl)-3-hydroxy-5-(4-prop-2-enyloxyph enyl)-3-pyrrolin-2-one
CAS 636991-70-3C25H30N2O5
5-(3,4-Dimethoxy-phenyl)-1-(2-dimethylamino-ethyl)-4-(2,5-dimethyl-benzoyl)-3-hydroxy-1,5-dihydro-pyrrol-2-one
CAS 537685-82-8C25H30N2O5
2-(N-(1-Ethoxy-1-oxo-4-phenylbutan-2-yl)alanyl)-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid
CAS 82768-84-1C25H30N2O5
![1-[2-(Dimethylamino)ethyl]-4-(4-ethoxy-3-methylbenzoyl)-3-hydroxy-5-(4-methoxyphenyl)-2,5-dihydro-1H-pyrrol-2-one chemical structure, C25H30N2O5, CAS 431934-70-2](/s/QFYCEZRZQYOCMB-XTQSDGFTSA-N.svg)
1-[2-(Dimethylamino)ethyl]-4-(4-ethoxy-3-methylbenzoyl)-3-hydroxy-5-(4-methoxyphenyl)-2,5-dihydro-1H-pyrrol-2-one
CAS 431934-70-2C25H30N2O5
Carbobenzyloxyprolylvaline benzyl ester
CAS 99909-22-5C25H30N2O5
Streptophenazine G
CAS 1018439-69-4C25H30N2O5
Streptophenazine F
CAS 1018439-68-3C25H30N2O5
![N-(2,5-Dimethoxyphenyl)-2'-(2-methoxyethyl)-1'-oxo-1',4'-dihydro-2'H-spiro[cyclopentane-1,3'-isoquinoline]-4'-carboxamide chemical structure, C25H30N2O5, CAS 1212486-53-7](/s/YPDMBICRBPMWIE-UHFFFAOYSA-N.svg)
N-(2,5-Dimethoxyphenyl)-2'-(2-methoxyethyl)-1'-oxo-1',4'-dihydro-2'H-spiro[cyclopentane-1,3'-isoquinoline]-4'-carboxamide
CAS 1212486-53-7C25H30N2O5
![N-(3,4-Dimethoxyphenyl)-2'-(2-methoxyethyl)-1'-oxo-1',4'-dihydro-2'H-spiro[cyclopentane-1,3'-isoquinoline]-4'-carboxamide chemical structure, C25H30N2O5, CAS 1212466-28-8](/s/ADLWNUHSBWHRMT-UHFFFAOYSA-N.svg)
N-(3,4-Dimethoxyphenyl)-2'-(2-methoxyethyl)-1'-oxo-1',4'-dihydro-2'H-spiro[cyclopentane-1,3'-isoquinoline]-4'-carboxamide
CAS 1212466-28-8C25H30N2O5
![N-(2,4-Dimethoxyphenyl)-2'-(2-methoxyethyl)-1'-oxo-1',4'-dihydro-2'H-spiro[cyclopentane-1,3'-isoquinoline]-4'-carboxamide chemical structure, C25H30N2O5, CAS 1212494-43-3](/s/LTQRXCBUEGHZRZ-UHFFFAOYSA-N.svg)
N-(2,4-Dimethoxyphenyl)-2'-(2-methoxyethyl)-1'-oxo-1',4'-dihydro-2'H-spiro[cyclopentane-1,3'-isoquinoline]-4'-carboxamide
CAS 1212494-43-3C25H30N2O5
![N-(3,5-Dimethoxyphenyl)-2'-(2-methoxyethyl)-1'-oxo-1',4'-dihydro-2'H-spiro[cyclopentane-1,3'-isoquinoline]-4'-carboxamide chemical structure, C25H30N2O5, CAS 1212433-34-5](/s/FLWSZLVBTQWDPO-UHFFFAOYSA-N.svg)
N-(3,5-Dimethoxyphenyl)-2'-(2-methoxyethyl)-1'-oxo-1',4'-dihydro-2'H-spiro[cyclopentane-1,3'-isoquinoline]-4'-carboxamide
CAS 1212433-34-5C25H30N2O5
3-(3,4-Dimethoxyphenyl)-4-methyl-7-(2-(4-methylpiperazin-1-yl)ethoxy)-2H-chromen-2-one
CAS 903851-63-8C25H30N2O5
epi-Carboxy quinapril
CAS 103833-16-5C25H30N2O5
epi-Ethoxycarbonyl quinapril
CAS 103775-09-3C25H30N2O5
Phenyl 4-((2-((2,2-dimethyl-2,3-dihydrobenzofuran-7-yl)oxy)acetamido)methyl)piperidine-1-carboxylate
CAS 1324691-80-6C25H30N2O5
3-(3,4-Dimethoxyphenyl)-7-(2-(4-ethylpiperazin-1-yl)ethoxy)-2H-chromen-2-one
CAS 920476-27-3C25H30N2O5
Obscurinervine
CAS 7097-00-9C25H30N2O5
![N-(5-Allyl-3,3-dimethyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-8-yl)-3,4-diethoxybenzamide chemical structure, C25H30N2O5, CAS 921794-39-0](/s/UWQXEHCYKFPBBR-UHFFFAOYSA-N.svg)
N-(5-Allyl-3,3-dimethyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-8-yl)-3,4-diethoxybenzamide
CAS 921794-39-0C25H30N2O5
- 6 suppliersFmoc-Ile-Aib-OH2171139-20-9C25H30N2O5
- Fmoc-Val-Val-OH116460-32-3C25H30N2O5
- 4-(Furan-2-carbonyl)-3-hydroxy-1-[3-(morpholin-4-yl)propyl]-5-[4-(propan-2-yl)phenyl]-2,5-dihydro-1H-pyrrol-2-one381207-64-3C25H30N2O5
- 1-(2-(Dimethylamino)ethyl)-3-hydroxy-4-(4-isopropoxybenzoyl)-5-(4-methoxyphenyl)-1H-pyrrol-2(5H)-one384376-09-4C25H30N2O5
- Ethyl 6-methyl-3-(3-morpholinopropyl)-3,4-dihydro-2H-furo[3',2':3,4]naphtho[2,1-e][1,3]oxazine-5-carboxylate380539-25-3C25H30N2O5
- 1-[3-(Dimethylamino)propyl]-3-hydroxy-4-(4-methoxy-3-methylbenzoyl)-5-(2-methoxyphenyl)-2,5-dihydro-1H-pyrrol-2-one433259-42-8C25H30N2O5
- 1-(2-(Dimethylamino)ethyl)-3-hydroxy-4-(4-methoxybenzoyl)-5-(3-propoxyphenyl)-1H-pyrrol-2(5H)-one620146-99-8C25H30N2O5
- 4-Benzoyl-1-(2-(dimethylamino)ethyl)-3-hydroxy-5-(3-methoxy-4-propoxyphenyl)-1H-pyrrol-2(5H)-one636988-88-0C25H30N2O5
- (E)-1-(3-(Diethylamino)propyl)-4-(3-(furan-2-yl)acryloyl)-3-hydroxy-5-(3-methoxyphenyl)-1H-pyrrol-2(5H)-one862314-25-8C25H30N2O5
- 7-(2-(4-(2-Hydroxyethyl)piperazin-1-yl)ethoxy)-3-(4-methoxyphenyl)-2-methyl-4H-chromen-4-one920428-52-0C25H30N2O5
- 7-{2-[4-(2-Hydroxyethyl)piperazin-1-yl]ethoxy}-3-(4-methoxyphenyl)-8-methyl-4H-chromen-4-one921117-96-6C25H30N2O5
- 1 suppliersEnalaprilat benzyl ester76391-33-8C25H30N2O5
- N,N-Dimethyl-2-(1-methylpyrrolidin-3-yl)-2,2-diphenyl-acetamide fumarate912-03-8C25H30N2O5
- 9-{4-(Dimethylamino)-3-nitrophenyl}-3,3,6,6-tetramethyl-3,4,5,6,7,9-hexahydro-1H-xanthene-1,8(2H)-dione311795-51-4C25H30N2O5
- 5-(3-(Allyloxy)phenyl)-1-(3-(diethylamino)propyl)-4-(furan-2-carbonyl)-3-hydroxy-1H-pyrrol-2(5H)-one619273-52-8C25H30N2O5
- (4E)-5-(2,3-Dimethoxyphenyl)-1-[3-(dimethylamino)propyl]-4-[hydroxy(4-methylphenyl)methylidene]pyrrolidine-2,3-dione371216-25-0C25H30N2O5
- 1-(2-(Dimethylamino)ethyl)-3-hydroxy-4-(4-methoxybenzoyl)-5-(4-propoxyphenyl)-1H-pyrrol-2(5H)-one615271-23-3C25H30N2O5
- (E)-[1-[2-(Diethylazaniumyl)ethyl]-2-(2,5-dimethoxyphenyl)-4,5-dioxopyrrolidin-3-ylidene]-phenylmethanolate296881-80-6C25H30N2O5
- 5-(2,5-Dimethoxyphenyl)-1-(2-(dimethylamino)ethyl)-4-(2,5-dimethylbenzoyl)-3-hydroxy-1H-pyrrol-2(5H)-one537685-81-7C25H30N2O5
- [S-(R*,R*)]-2-[2-tert-Butyloxycarbonylamino-1-oxopropyl]-1,2,3,4-tetrahydro-3-isoquinolinecarboxylic Acid Phenylmethyl Ester92829-12-4C25H30N2O5
- Ethyl 5-(benzyloxy)-N-(tert-butoxycarbonyl)-L-tryptophanate913718-99-7C25H30N2O5
- 2-[3-Benzyl-4-[(2-methylpropan-2-yl)oxycarbonyl]-2-oxopiperazin-1-yl]-3-phenylpropanoic acid193091-13-3C25H30N2O5
- 1-[2-(Diethylamino)ethyl]-3-hydroxy-5-(4-hydroxyphenyl)-4-(4-methoxy-3-methylbenzoyl)-2,5-dihydro-1H-pyrrol-2-one433324-41-5C25H30N2O5
- 1-(2-(Dimethylamino)ethyl)-3-hydroxy-5-(4-isopropoxyphenyl)-4-(4-methoxybenzoyl)-1H-pyrrol-2(5H)-one615271-08-4C25H30N2O5
- 1-[2-(Dimethylamino)ethyl]-5-(4-ethoxyphenyl)-4-[(4-ethoxyphenyl)carbonyl]-3-hydroxy-1,5-dihydro-2H-pyrrol-2-one371237-24-0C25H30N2O5
- 1-(2-(Dimethylamino)ethyl)-5-(4-ethoxy-3-methoxyphenyl)-3-hydroxy-4-(4-methylbenzoyl)-1H-pyrrol-2(5H)-one638134-20-0C25H30N2O5
- Ethyl 4-(4-{[(2,2-dimethyl-2,3-dihydro-1-benzofuran-7-yl)oxy]methyl}benzoyl)piperazine-1-carboxylate946204-96-2C25H30N2O5
- (S)-tert-Butyl 2-((S)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)propanamido)propanoate161009-04-7C25H30N2O5
- (S)-2-((S)-3-Benzyl-4-(tert-butoxycarbonyl)-2-oxopiperazin-1-yl)-3-phenylpropanoic acidC25H30N2O5
- 4-(4-Methoxyphenyl)-N-[4-(oxolan-2-ylmethylcarbamoyl)phenyl]oxane-4-carboxamide4243-98-5C25H30N2O5
- 5-(4-(Allyloxy)phenyl)-1-(2-(diethylamino)ethyl)-3-hydroxy-4-(5-methylfuran-2-carbonyl)-1H-pyrrol-2(5H)-one618087-72-2C25H30N2O5
- 4-Benzoyl-1-(3-(dimethylamino)propyl)-5-(4-ethoxy-3-methoxyphenyl)-3-hydroxy-1H-pyrrol-2(5H)-one638134-21-1C25H30N2O5
- 1-[2-(Dimethylamino)ethyl]-5-(4-ethoxyphenyl)-3-hydroxy-4-(4-methoxy-2-methylbenzoyl)-1,5-dihydro-2H-pyrrol-2-one371928-31-3C25H30N2O5
- 1-[2-(Dimethylamino)ethyl]-5-(4-ethoxyphenyl)-3-hydroxy-4-[(4-methoxy-3-methylphenyl)carbonyl]-1,5-dihydro-2H-pyrrol-2-one460045-87-8C25H30N2O5
- (4E)-4-[(3,4-Dimethoxyphenyl)-hydroxymethylidene]-1-[3-(dimethylamino)propyl]-5-(4-methylphenyl)pyrrolidine-2,3-dione615276-54-5C25H30N2O5
- 5-(2,5-Dimethoxyphenyl)-1-(3-(dimethylamino)propyl)-3-hydroxy-4-(4-methylbenzoyl)-1H-pyrrol-2(5H)-one615270-86-5C25H30N2O5
- 3-(2,4-Dimethoxyphenyl)-8-((4-ethylpiperazin-1-yl)methyl)-7-hydroxy-4-methyl-2H-chromen-2-one859668-80-7C25H30N2O5
- 3-(2,5-Dimethoxyphenyl)-8-((4-ethylpiperazin-1-yl)methyl)-7-hydroxy-4-methyl-2H-chromen-2-one864752-63-6C25H30N2O5
- 1H-Naphtho(2,1-b)pyran-8-carboxylic acid, 3-(diethylamino)-2-(4-morpholinylmethyl)-1-oxo-, ethyl ester58492-81-2C25H30N2O5
- 5-(3,4-Dimethoxyphenyl)-1-[3-(dimethylamino)propyl]-3-hydroxy-4-(4-methylbenzoyl)-2,5-dihydro-1H-pyrrol-2-one380874-35-1C25H30N2O5
- 1-[2-(Dimethylamino)ethyl]-4-(4-ethoxy-2-methylbenzoyl)-3-hydroxy-5-(4-methoxyphenyl)-2,5-dihydro-1H-pyrrol-2-one440085-79-0C25H30N2O5
- 3-Hydroxy-1-(3-methoxypropyl)-4-{[3-methyl-4-(2-methylpropoxy)phenyl]carbonyl}-5-(pyridin-4-yl)-1,5-dihydro-2H-pyrrol-2-one488722-95-8C25H30N2O5
- Quinapril-d51279029-79-6C25H30N2O5
- Fmoc-(3R,4R)-4-amino-1-oxyl-2,2,6,6-tetramethylpiperidine-3-carboxylic Acid583827-13-8C25H30N2O5
- (S)-a-(Fmoc-amino)-4-morpholinehexanoic acid2349553-17-7C25H30N2O5
- Hypercratine88607-22-1C25H30N2O5
- 1-[(3-tert-Butyl-5,9-dimethyl-7-oxo-7H-furo[3,2-g]chromen-6-yl)acetyl]piperidine-4-carboxamide859131-67-2C25H30N2O5
- 3,4,5-Triethoxy-N-[2-(7-methyl-2-oxo-1H-quinolin-3-yl)ethyl]benzamide851404-89-2C25H30N2O5
- 1-[3-(Dimethylamino)propyl]-4-(2,5-dimethylbenzoyl)-3-hydroxy-5-(4-hydroxy-3-methoxyphenyl)-2,5-dihydro-1H-pyrrol-2-one607689-68-9C25H30N2O5
- 1-[3-(Dimethylamino)propyl]-3-hydroxy-4-[(4-methoxy-3-methylphenyl)carbonyl]-5-(4-methoxyphenyl)-1,5-dihydro-2H-pyrrol-2-one518985-22-3C25H30N2O5
- 3,4,5-Triethoxy-N-(3-oxo-1,2,3,5,6,7-hexahydropyrido[3,2,1-ij]quinolin-9-yl)benzamide898455-41-9C25H30N2O5
- Methyl 4-Oxo-4-[4-[4-(phenethylcarbamoyl)phenoxy]-1-piperidyl]butanoate1069691-68-4C25H30N2O5
- (E)-2-((2,2-Dimethyl-2,3-dihydrobenzofuran-7-yl)oxy)-N-((1-(3-(furan-2-yl)acryloyl)piperidin-4-yl)methyl)acetamide1331577-83-3C25H30N2O5
- Ethyl 3-[5-(benzyloxy)-1H-indol-3-yl]-2-{[(tert-butoxy)carbonyl]amino}propanoate1257535-32-2C25H30N2O5
- tert-Butyl N2-(((9H-fluoren-9-yl)methoxy)carbonyl)-N4,N4-dimethyl-L-asparaginate2561479-85-2C25H30N2O5
- (2R)-2-[(2R)-2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-3-methylbutanamido]-3-methylbutanoic acid119153-92-3C25H30N2O5
- 1-[3-(3-tert-Butyl-5-methyl-7-oxo-7H-furo[3,2-g]chromen-6-yl)propanoyl]piperidine-4-carboxamide859127-46-1C25H30N2O5
- Benzyl 4-[3-methoxy-4-(3-methylbutoxy)phenyl]-6-methyl-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate690668-77-0C25H30N2O5
- Propionanilide, N-(1-phenethyl-3-pyrrolidinyl)-, fumarate (1:1)21787-61-1C25H30N2O5
- 1H-Indole-3-methanamine, N-butyl-5-methoxy-2-methyl-1-phenyl-, (Z)-2-butenedioate (1:1)56825-59-3C25H30N2O5
- 3,4,5-Triethoxy-N-{3-methyl-2-oxo-1-azatricyclo[6.3.1.0^{4,12}]dodeca-4,6,8(12)-trien-6-yl}benzamide898410-98-5C25H30N2O5
- 1-(Benzylamino)-3-(6-methyl-3,4-dihydro-1H-carbazol-9(2H)-yl)propan-2-ol oxalate1217093-10-1C25H30N2O5
- N-(5-Allyl-3,3-dimethyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-7-yl)-3,4-diethoxybenzamide921790-76-3C25H30N2O5
- 3,3'-((4-Ethoxyphenyl)methylene)bis(1-ethyl-4-hydroxy-6-methylpyridin-2(1H)-one)883088-27-5C25H30N2O5
- Benzyl 4-[3-methoxy-4-[(2-methylpropan-2-yl)oxycarbonyl-amino]phenyl]-3,6-dihydro-2H-pyridine-1-carboxylate1124330-11-5C25H30N2O5
- (3R,4S)-4-(9H-Fluoren-9-ylmethoxycarbonylamino)-1-hydroxy-2,2,6,6-tetramethylpiperidine-3-carboxylic acid583827-12-7C25H30N2O5
- Fmoc-HomoGln-otBu2044704-48-3C25H30N2O5
- 6-[4-(9H-Fluoren-9-ylmethoxycarbonylamino)butanoylamino]hexanoic acid141925-90-8C25H30N2O5
- rac-tert-Butyl (3R,4R)-4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-hydroxypiperidine-1-carboxylate2679928-88-0C25H30N2O5
- 1-[2-(Dimethylamino)ethyl]-4-(2,5-dimethylbenzoyl)-5-(3-ethoxy-4-hydroxyphenyl)-3-hydroxy-2,5-dihydro-1H-pyrrol-2-oneC25H30N2O5
- 1-[2-(Dimethylamino)ethyl]-5-(4-ethoxyphenyl)-3-hydroxy-4-(4-methoxy-3-methylbenzoyl)-2,5-dihydro-1H-pyrrol-2-oneC25H30N2O5
- 1-[3-(Dimethylamino)propyl]-4-[(2,5-dimethylphenyl)-hydroxymethylidene]-5-(4-hydroxy-3-methoxyphenyl)pyrrolidine-2,3-dioneC25H30N2O5
- 4-(2,5-Dimethylbenzoyl)-3-hydroxy-5-(5-methylfuran-2-yl)-1-[3-(morpholin-4-yl)propyl]-2,5-dihydro-1H-pyrrol-2-one537686-42-3C25H30N2O5
- (4E)-4-[(2,5-Dimethylphenyl)-hydroxymethylidene]-5-(5-methylfuran-2-yl)-1-(3-morpholin-4-ylpropyl)pyrrolidine-2,3-dioneC25H30N2O5
- Piperazine, 1-(10,11-dihydro-8-methyldibenz(b,f)oxepin-10-yl)-4-ethyl-, maleate (1:1)25562-34-9C25H30N2O5
- 2-[(2S)-2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-4-methylpentanamido]-2-methylpropanoic acid107076-69-7C25H30N2O5
Frequently asked questions
What is the molar mass of C25H30N2O5?
The molar mass of C25H30N2O5 is 438.52 g/mol, calculated from standard atomic weights for 25 carbon atoms, 30 hydrogen atoms, 2 nitrogen atoms and 5 oxygen atoms. The monoisotopic mass is 443.2469 Da.
How many compounds have the formula C25H30N2O5?
CompoundList lists 1,424 compounds with the molecular formula C25H30N2O5, including Quinapril, Cyclohexyl 2,7,7-trimethyl-4-(4-nitrophenyl)-5-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carboxylate, 5-Hydroxy-8-methoxy-7-(4-(4-methylpiperazin-1-yl)butoxy)-2-phenyl-4H-chromen-4-one. 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 C25H30N2O5?
C25H30N2O5 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.