Home > All categories> Dyes and Pigments> Dye Intermediates> 4-nitrotoluene-2-sulfonic acid

4-nitrotoluene-2-sulfonic acid

Get Latest Price >

FOB Price contact us for price

Origin: China

Cas No: 121-03-9

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 100 mt/month

Lead time: 7 days for OEM, 3 days for ready goods

Vendor:

Payment Terms:

Inquiry now

* Send an Inquiry to us

Add to wishlist

* Name your price
* Start order doesn't mean buying now

Products Specification
Product Description

Property

CAS No.: 121-03-9 Formula: C7H7NO5S Molecular Weight: 217.19900

Description

5-Nitro-o-toluenesulfonic Acid is a precursor to 4,4'-dinitrostilbene-2,2'-disulfonic acid in fluorescent whitener.

Basic Info

Chemical Name	4-nitrotoluene-2-sulfonic acid
Synonyms	2-Methyl-5-nitrobenzenesulfonic acid; PNTOS; 4-nitrotoluene-2-sulphonic acid; 5-nitro-o-toluenesulfonicac; para-nitrotoluene-ortho-sulfonic acid; 4-Nitro-toluol-2-sulfonsaeure; 4-Nitro-2-sulfotoluene; Benzenesulfonic acid, 2-methyl-5-nitro-; 2-Methyl-5-nitro-benzenesulfonic Acid; 5-nitro-o-toluenesulfonic acid; Toluenesulfonic acid,5-nitr; 4-Nitrotoluol-2-acid; 5-nitro-o-toluenesulfonicaci; 4-Nitro-o-toluenesulfonicacid; 4-Nitrotoluene-2-sulfonic acid dihydrate; 4-Nitrotoluene-2-Sulfonic Acid; P-NITROTOLUENE SULFONIC ACID; 4-Nitrotoluene-2-sulfonic Acid Hydrate; 4-Nitrotoluenesulfonic Acid;
CAS No.	121-03-9
Molecular Formula	C7H7NO5S
Molecular Weight	217.19900
PSA	108.57000
LogP	2.75390

Properties

Density	1.547g/cm3
Boiling Point	500ºC
Melting Point	133.5ºC
Refractive Index	1.596

Safety Info

RTECS	DB7175000
Safety Statements	S26; S36/37/39
HS Code	2904909090
RIDADR	UN 3261
Risk Statements	R34

Synthesis Route

Neopentyl Alcohol+2-Methyl-5-nitrobenzenesulfonyl chloride→4-nitrotoluene-2-sulfonic acid
4-nitrotoluene→4-nitrotoluene-2-sulfonic acid
p-cymene→4-nitrotoluene-2-sulfonic acid

Toxicity

Exposure Route	Type of Test	Species Observed	Dose/Duration	Toxic Effects
Administration onto the skin	Standard Draize test	Rodent - rabbit	20 mg/24H	-
Administration into the eye	Standard Draize test	Rodent - rabbit	2 mg/24H	-
Oral	LD50 - Lethal dose, 50 percent kill	Rodent - rat	3710 mg/kg	1.Details of toxic effects not reported other than lethal dose value