Vat Blue 4
Product Description
| Product | Vat Blue 4 |
| CAS | 81-77-6 |
| Formula | C28H14N2O4 |
| Synonym | C.I. Pigment Blue 60, 5,9,14,18-Anthrazinetetrone, 6,15-dihydro-, 6,15-Dihydroanthrazine-5,9,14,18-tetrone |
Typical Product Specifications
| Practically Insoluble | in org. solvs. |
| Insolubility | in water and oxygenated solvs. |
| Melting Point | 470-500 c (dec.) |
| Molecular weight | 442.43 |
| Solubility | conc. h2so4, in dil. alkalis |
| Notes | Use: COSMETIC COLORANT |
| Class | Dyes - Lakes - Pigments |
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