Molecular formula

C₁₈H₁₆N₄OS

127 compounds have this formula on CompoundList.

Molar mass: 336.41g/mol
Monoisotopic mass: 336.1045Da
Atoms: 40
Elements: 5
Rings plus double bonds: 13

The formula C18H16N4OS describes a molecule made of 18 carbon atoms, 16 hydrogen atoms, 4 nitrogen atoms, 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 × 1864.27%
12.011 × 18 = 216.198 g/mol
H Hydrogen × 164.79%
1.008 × 16 = 16.128 g/mol
N Nitrogen × 416.65%
14.007 × 4 = 56.028 g/mol
O Oxygen × 14.76%
15.999 × 1 = 15.999 g/mol
S Sulfur × 19.53%
32.06 × 1 = 32.060 g/mol

Look up another formula

Compounds with the formula C18H16N4OS

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

Showing 1 to 100 of 127 compounds

9-(Dimethylamino)-3-(4-methylphenyl)pyrido[3',2':4,5]thieno[3,2-d]pyrimidin-4(3H)-one

CAS 6048-64-2C₁₈H₁₆N₄OS

1-{[(1-Phenyl-1H-1,2,4-triazol-3-yl)thio]acetyl}indoline

CAS 675870-02-7C₁₈H₁₆N₄OS

2-((6-(Pyridin-2-yl)pyridazin-3-yl)thio)-N-(o-tolyl)acetamide

CAS 892438-11-8C₁₈H₁₆N₄OS

N-Benzyl-2-((6-(pyridin-2-yl)pyridazin-3-yl)thio)acetamide

CAS 893999-50-3C₁₈H₁₆N₄OS

$13-(Dimethylamino)-5-(4-methylphenyl)-8-thia-3,5,11-triazatricyclo[7.4.0.0^{2,7}]trideca-1(13),2(7),3,9,11-pentaen-6-one chemical structure, C18H16N4OS, CAS 869802-73-3$

13-(Dimethylamino)-5-(4-methylphenyl)-8-thia-3,5,11-triazatricyclo[7.4.0.0^{2,7}]trideca-1(13),2(7),3,9,11-pentaen-6-one

CAS 869802-73-3C₁₈H₁₆N₄OS

N'-[(1E,2E)-2-Methyl-3-phenylprop-2-en-1-ylidene]-3-(thiophen-2-yl)-1H-pyrazole-5-carbohydrazide

CAS 1284269-20-0C₁₈H₁₆N₄OS

2-Amino-4-ethyl-6-{[2-(4-methylphenyl)-2-oxoethyl]sulfanyl}pyridine-3,5-dicarbonitrile

CAS 5212-40-8C₁₈H₁₆N₄OS

N-Benzyl-1-(2-cyanoethyl)-3-thiophen-2-ylpyrazole-4-carboxamide

CAS 956259-92-0C₁₈H₁₆N₄OS

3-[4-(4-Methoxyphenyl)-5-(methylsulfanyl)-4H-1,2,4-triazol-3-yl]-1H-indole

CAS 852145-59-6C₁₈H₁₆N₄OS

4-Phenyl-7,8,9,10-tetrahydro-6H-cyclohepta[4,5]thieno[3,2-e][1,2,4]triazolo[4,3-a]pyrimidin-5(4H)-one

CAS 6032-72-0C₁₈H₁₆N₄OS

N-(4-Methylphenyl)-2-(6-pyridin-2-ylpyridazin-3-yl)sulfanylacetamide

CAS 893995-24-9C₁₈H₁₆N₄OS

(7Z)-3-(4-Methylphenyl)-7-(pyridin-2-ylmethylidene)-2,4-dihydro-[1,3]thiazolo[3,2-a][1,3,5]triazin-6-one

CAS 378774-18-6C₁₈H₁₆N₄OS

1-[3-(Quinoxalin-2-ylsulfanyl)propyl]-1,3-dihydro-2H-benzimidazol-2-one

CAS 587010-50-2C₁₈H₁₆N₄OS

6-(4-Methoxyphenyl)-5-methyl-3-(3-thienyl)pyrazolo[1,5-a]pyrimidin-7-ylamine

CAS 685109-45-9C₁₈H₁₆N₄OS

5-(4-Phenylpiperazin-1-yl)-2-thiophen-2-yl-1,3-oxazole-4-carbonitrile

CAS 613650-33-2C₁₈H₁₆N₄OS

3-[2-(Allylsulfanyl)-4-pyrimidinyl]-1-(4-methylphenyl)-4(1H)-pyridazinone

CAS 478077-70-2C₁₈H₁₆N₄OS

2-(Phenoxymethyl)-8,9,10,11-tetrahydro[1]benzothieno[3,2-e][1,2,4]triazolo[1,5-c]pyrimidine

CAS 325831-90-1C₁₈H₁₆N₄OS

3-Benzyl-6-(2-ethoxyphenyl)[1,2,4]triazolo[3,4-b][1,3,4]thiadiazole

CAS 825604-77-1C₁₈H₁₆N₄OS

3-(4-(3-Methoxyphenyl)-5-(methylthio)-4H-1,2,4-triazol-3-yl)-1H-indole

CAS 852145-37-0C₁₈H₁₆N₄OS

2-((6-(Pyridin-3-yl)pyridazin-3-yl)thio)-N-(o-tolyl)acetamide

CAS 872701-50-3C₁₈H₁₆N₄OS

2-((6-(Pyridin-3-yl)pyridazin-3-yl)thio)-N-(m-tolyl)acetamide

CAS 872701-52-5C₁₈H₁₆N₄OS

2-(2-Methoxyphenyl)-8,9,10,11-tetrahydro[1]benzothieno[3,2-e][1,2,4]triazolo[1,5-c]pyrimidine

CAS 380877-57-6C₁₈H₁₆N₄OS

(7Z)-3-(3-Methylphenyl)-7-(pyridin-2-ylmethylidene)-2,4-dihydro-[1,3]thiazolo[3,2-a][1,3,5]triazin-6-one

CAS 503429-44-5C₁₈H₁₆N₄OS

2-[(4-Allyl-5-pyridin-3-yl-4H-1,2,4-triazol-3-yl)thio]-1-phenylethanone

CAS 433249-85-5C₁₈H₁₆N₄OS

Frequently asked questions

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What is the molar mass of C18H16N4OS?

The molar mass of C18H16N4OS is 336.41 g/mol, calculated from standard atomic weights for 18 carbon atoms, 16 hydrogen atoms, 4 nitrogen atoms, 1 oxygen atom and 1 sulfur atom. The monoisotopic mass is 336.1045 Da.

How many compounds have the formula C18H16N4OS?

CompoundList lists 127 compounds with the molecular formula C18H16N4OS, including 9-(Dimethylamino)-3-(4-methylphenyl)pyrido[3',2':4,5]thieno[3,2-d]pyrimidin-4(3H)-one, 1-{[(1-Phenyl-1H-1,2,4-triazol-3-yl)thio]acetyl}indoline, 2-((6-(Pyridin-2-yl)pyridazin-3-yl)thio)-N-(o-tolyl)acetamide. 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 C18H16N4OS?

C18H16N4OS has a degree of unsaturation of 13. 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.