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Reference substances

Reference substances

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General information

Inventory

EC number:
226-109-5
EC name:
Calcium 3-hydroxy-4-[(4-methyl-2-sulphonatophenyl)azo]-2-naphthoate
CAS number:
5281-04-9

No inventory information available

Reference substance information

IUPAC name:
calcium 3-hydroxy-4-[(E)-2-(4-methyl-2-sulfophenyl)diazen-1-yl]naphthalene-2-carboxylate
Synonyms
Names:
Identifier:
IUPAC name
Calcium 3-hydroxy-4-[(4-methyl-2-sulphonatophenyl)azo]-2-naphthoate
Identifier:
IUPAC name
calcium 3-hydroxy-4-[(4-methyl-2-sulfonatophenyl)diazenyl]-2-naphthoate
Identifier:
common name
C.I. Pigment Red 57:1
Identifier:
common name
Pigment Red 57, calcium salt (1:1)
Calcium 3-hydroxy-4-[(4-methyl-2-sulfonatophenyl)diazenyl]-2-naphthoate

CAS information

CAS number:
5281-04-9

Molecular and structural information

Molecular formula:
C18H14N2O6S.Ca
Molecular weight:
424.445
SMILES notation:
c12c(c(c(C(=O)[O-])cc1cccc2)O)\N=N\c1c(cc(C)cc1)S(=O)(=O)[O-].[Ca+2]
InChl:
1S/C18H14N2O6S.Ca/c1-10-6-7-14(15(8-10)27(24,25)26)19-20-16-12-5-3-2-4-11(12)9-13(17(16)21)18(22)23;/h2-9,21H,1H3,(H,22,23)(H,24,25,26);/q;+2/p-2/b20-19+;
Structural formula:
Chemical structure