2,4-Diaminobenzenesulfonic acid(MPDSA)

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Product Name: MPDSA
Chemical Name: 2,4-Diaminobenzenesulfonic acid
: 3-Phenylenediamino-4-sulfonic acid; Meta-phenylenediamino-4-sulfonic acid;  O-AMINOSULFANILIC ACID;3-Phenylenediamino-4-sulfonic acid;1,3-Phenylendiamin-4-sulfonsure;META PHENYLENE DIAMINE 4-SULFONIC ACID;3-AMINO-4-SULFOANILINE;2,4-DIAMINOBENZENESULFONIC ACID;2,4-DIAMINOBENZENESULPHONIC ACID;2,4-DIAMINO-1-SULFOBENZENE
CAS No: 88-63-1
MW:  188.2
: Intermediate


Light brown crystals, precipitated from the water crystals were monoclinic. Soluble in hot water, slightly soluble in cold water, in the air gradually turned brown.


It is mainly used as intermediate for Reactive Yellow K-3G, Reactive Yellow M-5G, Reactive Brilliant Blue K-BR, Reactive Brilliant Blue K-6G, Reactive Brilliant Blue X-HG, GR, Reactive Brilliant Blue M-BR, Weak Acid Red FC, Acid Medium Brown RH.

Storage: Storage should be cool and ventilated, away from heat, fire, to prevent sun exposure, heat is strictly prohibited.
Package: 25kg PP bag for solid powder. 200L or 250KG Drum for Liquid.


Appearance Light-white powder
Content ≥99%
Moisture ≤1.0%
Insoluble ≤0.1%
Melting point 260-266 °C
Package 25kg plastic woven bag

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