| Identification | |
| Name: | Direct Brown 2 |
| Synonyms: | Benzoicacid,5-[[4'-[(7-amino-1-hydroxy-3-sulfo-2-naphthalenyl)azo][1,1'-biphenyl]-4-yl]azo]-2-hydroxy-,disodium salt (9CI);C.I. Direct Brown 2 (7CI);C.I. Direct Brown 2, disodiumsalt (8CI);Direct Brown M (6CI);Airedale Brown MD;Aizen Direct Brown MH;Amanil Brown MR;Atlantic Brown M;Atul Direct Brown MY;Azine Brown M;Azomine Brown M;Belamine Fast Brown M;Benzanil Brown M;Benzanol Brown M;Benzo Brown M;Brasilamina Fast Brown 3RA;Brown M;Calcomine Brown MCW;Chloramine Brown 2ME;Chloramine BrownMR;Chlorazol Brown M;Chlorazol Brown MP;Chrome Leather Brown M;ColumbiaBrown M;Diacotton Brown M;Diamine BrownM;Diamine Brown MBA-CF;Diaphtamine BrownM;Diazine Brown M;Diazine Brown MWR;DiphenylBrown 3RB;Diphenyl Brown BVV;Diphenyl Fast Brown MD; |
| CAS: | 2429-82-5 |
| EINECS: | 219-391-6 |
| Molecular Formula: | C29H19N5Na2O7S |
| Molecular Weight: | 627.53794 |
| InChI: | InChI=1/C29H21N5O7S.2Na/c30-19-6-1-18-13-26(42(39,40)41)27(28(36)23(18)14-19)34-32-21-9-4-17(5-10-21)16-2-7-20(8-3-16)31-33-22-11-12-25(35)24(15-22)29(37)38;;/h1-15,35-36H,30H2,(H,37,38)(H,39,40,41);;/q;2*+1/p-2/b33-31+,34-32+;; |
| Molecular Structure: | ![(C29H19N5Na2O7S) Benzoicacid,5-[[4'-[(7-amino-1-hydroxy-3-sulfo-2-naphthalenyl)azo][1,1'-biphenyl]-4-yl]azo]-2-hydrox...](https://img.guidechem.com/casimg/2429-82-5.gif) |
| Properties | |
| Density: | 1.54g/cm3 |
| Stability: | Stable. Incompatible with strong oxidizing agents. |
| Refractive index: | 1.733 |
| Appearance: | reddish-brown powder |
| Specification: |
Direct Brown 2 (CAS NO.2429-82-5) is a reddish-brown solid or dark brown powder. Azo dyes can be explosive when suspended in air at specific concentrations. It is slightly soluble in water. It is an azo compound. Azo, diazo, azido compounds can detonate. This applies in particular to organic azides that have been sensitized by the addition of metal salts or strong acids. Toxic gases are formed by mixing materials of this class with acids, aldehydes, amides, carbamates, cyanides, inorganic fluorides, halogenated organics, isocyanates, ketones, metals, nitrides, peroxides, phenols, epoxides, acyl halides, and strong oxidizing or reducing agents. Flammable gases are formed by mixing materials in this group with alkali metals. Explosive combination can occur with strong oxidizing agents, metal salts, peroxides, and sulfides. However, It is probably combustible. |
| Safety Data | |
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