ci 50420
nigrosine B
Identification
| Name | ci 50420 |
| IUPAC | disodium;(6E)-4-amino-3-[(4-nitrophenyl)diazenyl]-5-oxo-6-(phenylhydrazinylidene)naphthalene-2,7-disulfonate |
| CAS Number | 8005-03-6 |
| FDA UNII | SZT789770M |
| Molecular Formula | C22 H14 N6 Na2 O9 S2 |
| Molecular Weight | 616.49791856 |
| MDL Number | MFCD00044681 |
Regulatory
Physical Properties
| Assay | 95.00 to 100.00 |
| Food Chemicals Codex Listed | No |
| Flash Point | 32.00 °F. TCC ( 0.00 °C. ) (est) |
| logP (o/w) | 1.468 (est) |
Cosmetic Information
| CosIng | cosmetic data |
| Cosmetic Uses | cosmetic colorants |
No sensory data available
Safety Information
| Preferred SDS | View |
| Oral/Parenteral Toxicity | Not determined |
| Dermal Toxicity | Not determined |
| Inhalation Toxicity | Not determined |
GHS Classification
['GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)', 'GHS Label elements, including precautionary statements']
Safety in Use
| Category | coloring agents (for surface only) |
| Recommendation for ci 50420 usage levels up to | not for fragrance use. |
| Recommendation for ci 50420 flavor usage levels up to | not for flavor use. |
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Potential Uses
Natural Occurrence
Synonyms
acid black 2
c.i. 50420
C.I. acid black 2
CI acid black 2
disodium;(6E)-4-amino-3-[(4-nitrophenyl)diazenyl]-5-oxo-6-(phenylhydrazinylidene)naphthalene-2,7-disulfonate
lurazol deep blue EB
nigrosin, water soluble
nigrosine B
nigrosine WSB
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