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Methyl Red
(CAS RN:493-52-7 Product Number:M0421)


Methyl Red
Synonym Acid Red 2
Synonym 4-Dimethylaminoazobenzene-2'-carboxylic Acid

General Information

Product Number M0421

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Purity/Analysis Method >98.0%(HPLC)
Storage Temperature
M.F. / M.W. C15H15N3O2=269.30
CAS RN 493-52-7
Related CAS RN
MDL Number MFCD00002425
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Appearance Orange to Brown to Dark purple powder to crystal
Purity(HPLC) min. 98.0 area%
Absorbance min. 0.350(5 mg/L, EtOH, pH 6.6, 428.0 to 432.0 nm)
Solubility in hot EtOH(95vol%) transparency
Transition interval(pH) (purplish red)4.2 to 6.2(yellow)


Colour Index 13020
Beilstein 16(3)367
Reaxys-RN 750102
PubChem SID 87572480
Merck Index(14) 6119
RTECS# DG8960000
EC Number 207-776-1

Transport Information

HS Number 2927000090


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