Molecular formula

C₁₈H₁₇NOS

27 compounds have this formula on CompoundList.

Molar mass: 295.40g/mol
Monoisotopic mass: 295.1031Da
Atoms: 38
Elements: 5
Rings plus double bonds: 11

The formula C18H17NOS describes a molecule made of 18 carbon atoms, 17 hydrogen atoms, 1 nitrogen atom, 1 oxygen atom 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 × 1873.19%
12.011 × 18 = 216.198 g/mol
H Hydrogen × 175.80%
1.008 × 17 = 17.136 g/mol
N Nitrogen × 14.74%
14.007 × 1 = 14.007 g/mol
O Oxygen × 15.42%
15.999 × 1 = 15.999 g/mol
S Sulfur × 110.85%
32.06 × 1 = 32.060 g/mol

Look up another formula

Compounds with the formula C18H17NOS

Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.

Showing 1 to 27 of 27 compounds

Norketotifen

CAS 34580-20-6C₁₈H₁₇NOS

1-(2-Methyl-1H-indol-3-yl)-2-[(4-methylphenyl)thio]ethanone

CAS 577961-46-7C₁₈H₁₇NOS

BM 51.0836

CAS 143390-74-3C₁₈H₁₇NOS

1-Indole-3-butanethioic acid, S-phenyl ester

CAS 85977-73-7C₁₈H₁₇NOS

3-[Benzyl(methyl)amino]-6-methyl-4H-thiochromen-4-one

CAS 895798-54-6C₁₈H₁₇NOS

(1R,5S)-8-Azabicyclo[3.2.1]oct-2-en-8-yl(4-(thiophen-3-yl)phenyl)methanone

CAS 1797558-78-1C₁₈H₁₇NOS

2-Naphthalen-1-yl-N-(2-thiophen-2-ylethyl)acetamide

CAS 1180834-63-2C₁₈H₁₇NOS

(1R,5S)-8-Azabicyclo[3.2.1]oct-2-en-8-yl(4-(thiophen-2-yl)phenyl)methanone

CAS 1796947-95-9C₁₈H₁₇NOS

Propanamide, 3-(2-methyldibenzo(b,e)thiepin-11(6H)-ylidene)-, (E)-

CAS 112930-70-8C₁₈H₁₇NOS

N-(Benzo[b]thiophen-5-yl)-2-(2,4-dimethylphenyl)acetamide

CAS 922622-83-1C₁₈H₁₇NOS

2-Ethoxy-2a-methyl-7b-phenyl-[1]benzothiolo[3,2-b]azete

CAS 84538-74-9C₁₈H₁₇NOS

N-(2-Ethyl-6-methylphenyl)-1-benzothiophene-3-carboxamide

CAS 717872-14-5C₁₈H₁₇NOS

N-(2,3-Dihydro-1H-inden-2-yl)-N-[(thiophen-2-yl)methyl]but-2-ynamide

CAS 2094190-51-7C₁₈H₁₇NOS

3-Ethoxy-2-methyl-4-phenyl-1,5-benzothiazepine

CAS 83463-81-4C₁₈H₁₇NOS

N-(Benzenecarbothioyl)-N-benzyl-2-methylprop-2-enamide

CAS 88295-96-9C₁₈H₁₇NOS

2-(3-Methoxyphenyl)-4-methyl-5-(p-tolyl)thiazole

CAS 1127218-03-4C₁₈H₁₇NOS

4-Thiazolidinone, 3-(2,6-dimethylphenyl)-2-methylene-5-phenyl-

CAS 754215-54-8C₁₈H₁₇NOS

3-[5-(1-Methylethyl)-4-phenyl-2-thiazolyl]phenol

CAS 1039915-80-4C₁₈H₁₇NOS

1-[(4,7-Dihydrothieno[2,3-c]pyridin-6(5H)-yl)methyl]naphthalen-2-ol

CAS 62539-80-4C₁₈H₁₇NOS

5-[2-(Methylthio)ethynyl]-2,3-diphenylisoxazolidine

CAS 4872-59-7C₁₈H₁₇NOS

2-Imino-3,3-dimethyl-4,5-diphenyl-2,3-dihydro-1H-1lambda~4~-thiophen-1-one

CAS 113002-11-2C₁₈H₁₇NOS

3-Phenyl-4-propoxyquinoline-2(1H)-thione

CAS 89081-02-7C₁₈H₁₇NOS

Cyclopentyl(10H-phenothiazin-10-yl)methanone

CAS 828266-39-3C₁₈H₁₇NOS

4-Ethyl-3-[5-(4-methoxyphenyl)-2-thienyl]pyridine

CAS 1055119-09-9C₁₈H₁₇NOS

Frequently asked questions

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What is the molar mass of C18H17NOS?

The molar mass of C18H17NOS is 295.40 g/mol, calculated from standard atomic weights for 18 carbon atoms, 17 hydrogen atoms, 1 nitrogen atom, 1 oxygen atom and 1 sulfur atom. The monoisotopic mass is 295.1031 Da.

How many compounds have the formula C18H17NOS?

CompoundList lists 27 compounds with the molecular formula C18H17NOS, including Norketotifen, 1-(2-Methyl-1H-indol-3-yl)-2-[(4-methylphenyl)thio]ethanone, BM 51.0836. 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 C18H17NOS?

C18H17NOS has a degree of unsaturation of 11. 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.