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Molecular formula

C21H19ClN4O4S2

11 compounds have this formula on CompoundList.

Molar mass
490.98g/mol
Monoisotopic mass
490.0536Da
Atoms
51
Elements
6
Rings plus double bonds
14

The formula C21H19ClN4O4S2 describes a molecule made of 21 carbon atoms, 19 hydrogen atoms, 1 chlorine atom, 4 nitrogen atoms, 4 oxygen atoms and 2 sulfur 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 × 2151.37%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 193.90%
    1.008 × 19 = 19.152 g/mol
  • Cl Chlorine × 17.22%
    35.45 × 1 = 35.450 g/mol
  • N Nitrogen × 411.41%
    14.007 × 4 = 56.028 g/mol
  • O Oxygen × 413.03%
    15.999 × 4 = 63.996 g/mol
  • S Sulfur × 213.06%
    32.06 × 2 = 64.120 g/mol
Look up another formula

Compounds with the formula C21H19ClN4O4S2

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

Showing 1 to 11 of 11 compounds

7-[(4-Chlorophenyl)(8-hydroxy-6-oxo-3,4-dihydro-2H,6H-pyrimido[2,1-b][1,3]thiazin-7-yl)methyl]-8-hydroxy-3,4-dihydro-2H,6H-pyrimido[2,1-b][1,3]thiazin-6-one chemical structure, C21H19ClN4O4S2, CAS 312926-49-1
7-[(4-Chlorophenyl)(8-hydroxy-6-oxo-3,4-dihydro-2H,6H-pyrimido[2,1-b][1,3]thiazin-7-yl)methyl]-8-hydroxy-3,4-dihydro-2H,6H-pyrimido[2,1-b][1,3]thiazin-6-one
CAS 312926-49-1C21H19ClN4O4S2
2-[(9-Chloro-6-methyl-5,5-dioxido-6H-pyrimido[5,4-c][2,1]benzothiazin-2-yl)thio]-N-(4-ethoxyphenyl)acetamide chemical structure, C21H19ClN4O4S2, CAS 950471-20-2
2-[(9-Chloro-6-methyl-5,5-dioxido-6H-pyrimido[5,4-c][2,1]benzothiazin-2-yl)thio]-N-(4-ethoxyphenyl)acetamide
CAS 950471-20-2C21H19ClN4O4S2
6-({4-[4-(4-Chlorophenyl)-1,3-thiazol-2-yl]-1-piperazinyl}sulfonyl)-2H-1,4-benzoxazin-3(4H)-one chemical structure, C21H19ClN4O4S2, CAS 879570-45-3
6-({4-[4-(4-Chlorophenyl)-1,3-thiazol-2-yl]-1-piperazinyl}sulfonyl)-2H-1,4-benzoxazin-3(4H)-one
CAS 879570-45-3C21H19ClN4O4S2
2-[(8-Chloro-6-methyl-5,5-dioxido-6H-pyrimido[5,4-c][2,1]benzothiazin-2-yl)thio]-N-(4-ethoxyphenyl)acetamide chemical structure, C21H19ClN4O4S2, CAS 1111434-16-2
2-[(8-Chloro-6-methyl-5,5-dioxido-6H-pyrimido[5,4-c][2,1]benzothiazin-2-yl)thio]-N-(4-ethoxyphenyl)acetamide
CAS 1111434-16-2C21H19ClN4O4S2
N-(5-Chloro-2-methoxyphenyl)-2-(6-ethyl-5,5-dioxopyrimido[5,4-c][2,1]benzothiazin-2-yl)sulfanylacetamide chemical structure, C21H19ClN4O4S2, CAS 951478-74-3
N-(5-Chloro-2-methoxyphenyl)-2-(6-ethyl-5,5-dioxopyrimido[5,4-c][2,1]benzothiazin-2-yl)sulfanylacetamide
CAS 951478-74-3C21H19ClN4O4S2
N-(3-Chloro-4-methoxyphenyl)-2-((6-ethyl-5,5-dioxido-6H-benzo[c]pyrimido[4,5-e][1,2]thiazin-2-yl)thio)acetamide chemical structure, C21H19ClN4O4S2, CAS 1111245-11-4
N-(3-Chloro-4-methoxyphenyl)-2-((6-ethyl-5,5-dioxido-6H-benzo[c]pyrimido[4,5-e][1,2]thiazin-2-yl)thio)acetamide
CAS 1111245-11-4C21H19ClN4O4S2
2-((9-Chloro-6-methyl-5,5-dioxido-6H-benzo[c]pyrimido[4,5-e][1,2]thiazin-2-yl)thio)-N-(2-methoxy-5-methylphenyl)acetamide chemical structure, C21H19ClN4O4S2, CAS 1110973-87-9
2-((9-Chloro-6-methyl-5,5-dioxido-6H-benzo[c]pyrimido[4,5-e][1,2]thiazin-2-yl)thio)-N-(2-methoxy-5-methylphenyl)acetamide
CAS 1110973-87-9C21H19ClN4O4S2
2-((9-Chloro-6-methyl-5,5-dioxido-6H-benzo[c]pyrimido[4,5-e][1,2]thiazin-2-yl)thio)-N-(2-methoxybenzyl)acetamide chemical structure, C21H19ClN4O4S2, CAS 1111281-27-6
2-((9-Chloro-6-methyl-5,5-dioxido-6H-benzo[c]pyrimido[4,5-e][1,2]thiazin-2-yl)thio)-N-(2-methoxybenzyl)acetamide
CAS 1111281-27-6C21H19ClN4O4S2
2-(4-Chlorobenzamido)-N-(4-sulfamoylphenyl)-4,5,6,7-tetrahydrobenzo[d]thiazole-4-carboxamide chemical structure, C21H19ClN4O4S2, CAS 955632-75-4
2-(4-Chlorobenzamido)-N-(4-sulfamoylphenyl)-4,5,6,7-tetrahydrobenzo[d]thiazole-4-carboxamide
CAS 955632-75-4C21H19ClN4O4S2
1-(4-Chlorophenyl)sulfonyl-4-(4-nitro-3-pyridin-2-ylsulfanylphenyl)piperazine chemical structure, C21H19ClN4O4S2, CAS 524033-68-9
1-(4-Chlorophenyl)sulfonyl-4-(4-nitro-3-pyridin-2-ylsulfanylphenyl)piperazine
CAS 524033-68-9C21H19ClN4O4S2
3-Ethyl-2-[3-(3-ethyl-6-nitro-1,3-benzothiazol-2(3H)-ylidene)prop-1-en-1-yl]-6-nitro-1,3-benzothiazol-3-ium chloride chemical structure, C21H19ClN4O4S2, CAS 23312-11-0
3-Ethyl-2-[3-(3-ethyl-6-nitro-1,3-benzothiazol-2(3H)-ylidene)prop-1-en-1-yl]-6-nitro-1,3-benzothiazol-3-ium chloride
CAS 23312-11-0C21H19ClN4O4S2

Frequently asked questions

What is the molar mass of C21H19ClN4O4S2?

The molar mass of C21H19ClN4O4S2 is 490.98 g/mol, calculated from standard atomic weights for 21 carbon atoms, 19 hydrogen atoms, 1 chlorine atom, 4 nitrogen atoms, 4 oxygen atoms and 2 sulfur atoms. The monoisotopic mass is 490.0536 Da.

How many compounds have the formula C21H19ClN4O4S2?

CompoundList lists 11 compounds with the molecular formula C21H19ClN4O4S2, including 7-[(4-Chlorophenyl)(8-hydroxy-6-oxo-3,4-dihydro-2H,6H-pyrimido[2,1-b][1,3]thiazin-7-yl)methyl]-8-hydroxy-3,4-dihydro-2H,6H-pyrimido[2,1-b][1,3]thiazin-6-one, 2-[(9-Chloro-6-methyl-5,5-dioxido-6H-pyrimido[5,4-c][2,1]benzothiazin-2-yl)thio]-N-(4-ethoxyphenyl)acetamide, 6-({4-[4-(4-Chlorophenyl)-1,3-thiazol-2-yl]-1-piperazinyl}sulfonyl)-2H-1,4-benzoxazin-3(4H)-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 C21H19ClN4O4S2?

C21H19ClN4O4S2 has a degree of unsaturation of 14. 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.