2-Methyl-5-nitrobenzenesulfonic acid Two Chongqing Chemdad Co. ，Ltd

Product

2-Methyl-5-nitrobenzenesulfonic acid

CAS No.：121-03-9

Other grades of this product :

2-Methyl-5-nitrobenzenesulfonic acid Basic information

Product Name:	2-Methyl-5-nitrobenzenesulfonic acid
Synonyms:	2-Methyl-5-nitrobenzenesalfonicacid;2-methyl-5-nitro-benzenesulfonicaci;2-toluenesulfonicacid,5-nitro;4-Nitro-o-toluenesulfonicacid;4-nitrotoluene-2-sulphonicacid;5-nitro-2-methylbenzenesulfonicacid;5-nitro-o-toluenesulfonicaci;5-nitro-o-toluenesulfonicacid
CAS:	121-03-9
MF:	C7H7NO5S
MW:	217.2
EINECS:	204-445-3
Product Categories:	Intermediates of Dyes and Pigments
Mol File:	121-03-9.mol

2-Methyl-5-nitrobenzenesulfonic acid Chemical Properties

Melting point	135°C
Boiling point	500°C (rough estimate)
density	1.6040 (rough estimate)
vapor pressure	0Pa at 20℃
refractive index	1.6100 (estimate)
storage temp.	Sealed in dry,Room Temperature
solubility	Methanol (Slightly), Water (Slightly)
pka	-1.14±0.33(Predicted)
form	Solid
color	Very Dark Brown
Water Solubility	667g/L at 23℃
CAS DataBase Reference	121-03-9(CAS DataBase Reference)
EPA Substance Registry System	Benzenesulfonic acid, 2-methyl-5-nitro- (121-03-9)

Safety Information

Hazard Codes	Xn
Risk Statements	34-41-43-36-22
Safety Statements	26-36/37/39-39-36/37
RIDADR	3261
RTECS	DB7175000
HazardClass	8
PackingGroup	III
Hazardous Substances Data	121-03-9(Hazardous Substances Data)

MSDS Information

2-Methyl-5-nitrobenzenesulfonic acid Usage And Synthesis

Uses	5-Nitro-o-toluenesulfonic Acid is a precursor to 4,4''-dinitrostilbene-2,2''-disulfonic acid in fluorescent whitener.
Definition	ChEBI: The arenesulfonic acid that is toluene-2-sulfonic acid bearing a nitro substituent at C-4.
Flammability and Explosibility	Nonflammable

2-Methyl-5-nitrobenzenesulfonic acid Preparation Products And Raw materials

Raw materials	4-Nitrotoluene-->2-TOLUENESULFONIC ACID-->2-Methyl-5-nitrobenzenesulfonyl chloride-->NEOPENTYL ALCOHOL-->p-Cymene-->Sulfuric acid
Preparation Products	STILBENE YELLOW-->4,4'-Diamino-2,2'-stilbenedisulfonic acid-->5-Amino-2-methylbenzenesulfonic acid-->2-NITROTOLUENE-4-SULFONIC ACID-->Formic acid

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