| post date: | dec 02,2021 |
| expiry date: | may 31,2022 |
| detailed description: |
cas no. :4399-55-7
appearance: dark brown to black powder physical state: solid solubility: soluble in water (partly miscible). storage: store at room temperature |
| cas registry number: | 4399-55-7 |
| synonyms: | ;c.i. direct blue 71;c.i. 34140;direct blue 71;direct blue 71 (c.i. 34140);tetrasodium 3-[(e)-{4-[(e)-{4-[2-(6-amino-1-oxo-3-sulfonatonaphthalen-2(1h)-ylidene)hydrazino]-6-sulfonatonaphthalen-1-yl}diazenyl]naphthalen-1-yl}diazenyl]naphthalene-1,5-disulfonate;tetrasodium 3-[(e)-{4-[(e)-{4-[(2e)-2-(6-amino-1-oxo-3-sulfonatonaphthalen-2(1h)-ylidene)hydrazinyl]-6-sulfonatonaphthalen-1-yl}diazenyl]naphthalen-1-yl}diazenyl]naphthalene-1,5-disulfonate;direct blue 71(c.i.34140); |
| molecular formula: | c40h23n7na4o13s4 |
| molecular weight: | 1029.8688 |
| molecular structure: | 
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| safety description: | s24/25:; |
