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Red No.201
| Legal color: | Red No.201 | | General name: | Lithol Rubine B | | Class: | Pigment | | FDA : | D & C Red No.6 | | CI #: | C.I. 15850 | | Color #: | Pig. Red 57-1 | | CAS #: | 5858-81-1 | | CAS : | 2-Naphthalenecarboxylic acid,3-hydroxy-4-[(4-methyl-2-sulfophenyl)azo]-,calcium salt(1:1) | | IUPAC: | →1;Sodium 2-(3-carboxy-2-hydroxynaphthylazo)-5-methylbenzenesulfonate
→2;2-(3-Carboxy-2-hydroxynaphthylazo)-5-methylbenzenesulfonic acid sodium salt |
| Chemical structure : |  
Lithol Rubine B |
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