Conditions | Yield |
---|---|
Stage #1: 3-Hydroxy-2-naphthoic acid With sodium hydroxide In water at 50℃; Stage #2: [15N]-5-methyl-2-diazobenzenesulphonic acid hydrochloride In water at 15 - 20℃; for 2h; |
D&C red no. 6
Conditions | Yield |
---|---|
With calcium chloride In water at 25 - 35℃; for 1.5 - 2h; Product distribution / selectivity; |
C.I. Pigment red 57, disodium salt (8ci) (CAS NO.5858-81-1) is mainly used to produce lake pigments.
Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
---|---|---|---|---|---|
rat | LD50 | oral | > 10800mg/kg (10800mg/kg) | Science Reports of the Research Institutes, Tohoku University, Series C: Medicine. Vol. 36(1-4), Pg. 10, 1989. |
Reported in EPA TSCA Inventory.
Low toxicity by ingestion. When heated to decomposition it emits toxic vapors of NOx and SOx.
The C.I. Pigment red 57, disodium salt (8CI), with the CAS registry number 5858-81-1 and EINECS registry number 227-497-9, has the systematic name of disodium 3-hydroxy-4-(4-methyl-2-sulfonato-phenyl)azo-naphthalene-2-carboxylate. It is a kind of organics, and the molecular formula of the chemical is C18H14N2Na2O6S.
The physical properties of C.I. Pigment red 57, disodium salt (8CI) are as followings: (1)#H bond acceptors: 8; (2)#H bond donors: 3; (3)#Freely Rotating Bonds: 5; (4)Polar Surface Area: 150.66 Å2.
You can still convert the following datas into molecular structure:
(1)SMILES: [Na+].[Na+].[O-]S(=O)(=O)c3cc(C)ccc3N=Nc1c2ccccc2cc(C([O-])=O)c1O
(2)InChI: InChI=1/C18H14N2O6S.2Na/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*+1/p-2
(3)InChIKey: VPWFPZBFBFHIIL-NUQVWONBAY
The toxicity data is as follows:
Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
---|---|---|---|---|---|
rat | LD50 | oral | > 10800mg/kg (10800mg/kg) | Science Reports of the Research Institutes, Tohoku University, Series C: Medicine. Vol. 36(1-4), Pg. 10, 1989. |
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