nanjingchem

Para Nitro Toluene Ortho Sulphonic Acid

Product name: Para Nitro Toluene Ortho Sulphonic AcidPNTOSA
Chemical name: 2-Methyl-5-nitrobenzenesulfonic acid;
Synonyms: PNTOSA; Para Nitro Toluene Ortho Sulfonic Acid
CAS: 121-03-9
MW: 217.2
MF: C7H7NO5S
Use: It is mainly used as intermediate of DSD Acid.
Package: 25kg plastic woven bag
Origin: Made In China

Specifications

Items Standards Results
Appearance white to light brown solid Comply
Content 80% 80%
Moisture 0.5% 0.5%
Acid insoluble 0.1% 0.02%

Introductions

PNTOSA is white or grey white crystal. Soluble in acetic acid, ethanol and acetic acid, slightly soluble in water. It is used to make DSD acid and other dye intermediates.

Its main raw material for producing  DSD Acid and direct dyes.

MSDS of PNTOSA

PNTOSA

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