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| CAS No.: | 15139-76-1 |
|---|---|
| Name: | disodium 3-ethyl 4,5-dihydro-5-oxo-4-[(4-sulphonato-1-naphthyl)azo]-1-(4-sulphonatophenyl)-1H-pyrazole-3-carboxylate |
| Molecular Structure: | |
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| Formula: | C22H18 N4 O9 S2 . 2 Na |
| Molecular Weight: | 590.50 |
| Synonyms: | 1H-Pyrazole-3-carboxylicacid, 4,5-dihydro-5-oxo-4-[(4-sulfo-1-naphthalenyl)azo]-1-(4-sulfophenyl)-,3-ethyl ester, disodium salt (9CI); 2-Pyrazoline-3-carboxylic acid,5-oxo-4-[(4-sulfo-1-naphthyl)azo]-1-(p-sulfophenyl)-, 3-ethyl ester, disodiumsalt (8CI); C.I. Acid Orange 137; Orange B |
| Density: | g/cm3 |
| Boiling Point: | °Cat760mmHg |
| Flash Point: | °C |
| Safety: | When heated to decomposition emits toxic fumes of SOx. |
| PSA: | 214.85000 |
| LogP: | 3.72840 |
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Chemistry
Product Name: Orakge B (15139-76-1)
Molecular Formula: C22H16N4Na2O9S2
Molecular Weight: 590.49338g/mol
Mol File: 15139-76-1.mol
Einecs: 239-201-5
Appearance: Dull orange crystals
Synonyms of Orakge B (15139-76-1): Disodium 3-ethyl 4,5-dihydro-5-oxo-4-[(4-sulphonato-1-naphthyl)azo]-1-(4-sulphonatophenyl)-1H-pyrazole-3-carboxylate ; 4,5-Dihydro-5-oxo-4-[[4-(sodiooxysulfonyl)-1-naphthyl]azo]-1-[4-(sodiooxysulfonyl)phenyl]-1H-pyrazole-3-carboxylic acid ethyl ; 4,5-Dihydro-5-oxo-4-[[4-(sodiooxysulfonyl)-1-naphtyl]azo]-1-[4-(sodiooxysulfonyl)phenyl]-1H-pyrazole-3-carboxylic acid ethyl ester ; C.I.Acid orange 137 .
Uses
Orakge B (15139-76-1) is a food dye from the azo dye group. It is approved by Food and Drug Administration (FDA) for use only in hot dog and sausage casings or surfaces, only up to 150 ppm of the finished food weight.It usually comes as disodium salt.
Safety Profile
When heated to decomposition emits toxic fumes of SOx.