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4-Amino-5-methoxy-2-methylbenzenesulfonic Acid

4-Amino-5-methoxy-2-methylbenzenesulfonic Acid structure

CAS No.: 6471-78-9

Chemical Name:: 4-Amino-5-methoxy-2-methylbenzenesulfonic Acid

Synonyms: 4-Amino-5-methoxy-2-;Allura Red Impurity 2;CRESIDINE SULFONIC ACID;Policresulen Impurity 31;Cresidine-p-sulfonic Acid;p-Cresidine suruhonic acid;p-cresidine-o-sulfonic acid;P-CRESIDINE-4-SULFONIC ACID;P-CRESIDINE-2-SULFONIC ACID;4-CRESIDINE-O-SULFONIC ACID

CBNumber:: CB1131219

Molecular Formula:: C8H11NO4S

Molecular Weight:: 217.24

MDL Number:: MFCD00035949

MOL File:: 6471-78-9.mol

MSDS File:: SDS

Last updated:2025-08-21 14:20:00

Product description	Number	Pack Size	Price
4-Amino-5-methoxy-2-methylbenzenesulfonicAcid	A611970	10g	$905
4-AMINO-5-METHOXY-2-METHYLBENZENSULFONIC ACID 95.00%	CHM0031708	10G	$2055.9
4-Amino-5-methoxy-2-methylbenzenesulfonic acid	FA17630	500mg	$65
4-Amino-5-methoxy-2-methylbenzensulfonicacid	P783	1g	$67
4-Amino-5-methoxy-2-methylbenzenesulfonic acid	FA17630	1g	$100
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4-Amino-5-methoxy-2-methylbenzenesulfonic Acid Properties

Melting point	>205°C (dec.)
Boiling point	398.51℃[at 101 325 Pa]
Density	1.403±0.06 g/cm3(Predicted)
vapor pressure	0Pa at 25℃
storage temp.	Keep in dark place,Inert atmosphere,Room temperature
solubility	DMSO (Slightly, Heated), Water (Slightly, Heated)
form	Solid
pka	-1.09±0.50(Predicted)
color	Light Grey
Water Solubility	6.208g/L at 25℃
InChI	InChI=1S/C8H11NO4S/c1-5-3-6(9)7(13-2)4-8(5)14(10,11)12/h3-4H,9H2,1-2H3,(H,10,11,12)
InChIKey	JBAVAJIXZVRJHT-UHFFFAOYSA-N
SMILES	C1(S(O)(=O)=O)=CC(OC)=C(N)C=C1C
LogP	-1.45 at 25℃
CAS DataBase Reference	6471-78-9(CAS DataBase Reference)
FDA UNII	308K033X64
EPA Substance Registry System	Benzenesulfonic acid, 4-amino-5-methoxy-2-methyl- (6471-78-9)

SAFETY

Risk and Safety Statements

Symbol(GHS)	GHS07
Signal word	Warning
Hazard statements	H319-H335-H315-H302+H312+H332
Precautionary statements	P280-P305+P351+P338-P362+P364
Risk Statements	20/21/22-36/37/38
Safety Statements	26-36/37/39
HS Code	2930909899

4-Amino-5-methoxy-2-methylbenzenesulfonic Acid price More Price(22)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
TRC	A611970	4-Amino-5-methoxy-2-methylbenzenesulfonicAcid	6471-78-9	10g	$905	2021-12-16	Buy
American Custom Chemicals Corporation	CHM0031708	4-AMINO-5-METHOXY-2-METHYLBENZENSULFONIC ACID 95.00%	6471-78-9	10G	$2055.9	2021-12-16	Buy
Biosynth Carbosynth	FA17630	4-Amino-5-methoxy-2-methylbenzenesulfonic acid	6471-78-9	500mg	$65	2021-12-16	Buy
AK Scientific	P783	4-Amino-5-methoxy-2-methylbenzensulfonicacid	6471-78-9	1g	$67	2021-12-16	Buy
Biosynth Carbosynth	FA17630	4-Amino-5-methoxy-2-methylbenzenesulfonic acid	6471-78-9	1g	$100	2021-12-16	Buy

Product number	Packaging	Price	Buy
A611970	10g	$905	Buy
CHM0031708	10G	$2055.9	Buy
FA17630	500mg	$65	Buy
P783	1g	$67	Buy
FA17630	1g	$100	Buy

4-Amino-5-methoxy-2-methylbenzenesulfonic Acid Chemical Properties,Uses,Production

Chemical Properties

Light Grey Solid

Uses

An intermediate of azo dyes. Mutagenic.

4-Amino-5-methoxy-2-methylbenzenesulfonic Acid Preparation Products And Raw materials

Raw materials

2-Methoxy-5-methylaniline

Preparation Products

Direct Red 257 ALLURA RED AC Aluminum, 6-hydroxy-5-[(2-methoxy-5-methyl-4-sulfophenyl)azo]-2-naphthalenesulfonic acid complex

4-Amino-5-methoxy-2-methylbenzenesulfonic Acid Suppliers

Global( 191)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21615	55
career henan chemical co	+86-0371-86658258 +8613203830695	sales@coreychem.com	China	29850	58
NINGBO INNO PHARMCHEM CO., LTD.	13867897135	sales@nbinno.com	CHINA	923	58
Hubei Jusheng Technology Co.,Ltd.	18871490254	linda@hubeijusheng.com	CHINA	28172	58
CONIER CHEM AND PHARMA LIMITED	+8618523575427	sales@conier.com	China	49975	58
SIMAGCHEM CORP	+86-5922680277 +86-13806087780	sale@simagchem.com	China	17346	58
Hefei TNJ Chemical Industry Co.,Ltd.	+86-0551-65418671 +8618949823763	sales@tnjchem.com	China	34563	58
Dideu Industries Group Limited	+86-29-89586680 +86-15129568250	1026@dideu.com	China	20284	58
Dayang Chem (Hangzhou) Co.,Ltd.	+86-0571-88938639 +8617705817739	info@dycnchem.com	China	52846	58
changzhou huayang technology co., ltd	+8615250961469	2571773637@qq.com	China	9644	58

Supplier	Advantage
Henan Tianfu Chemical Co.,Ltd.	55
career henan chemical co	58
NINGBO INNO PHARMCHEM CO., LTD.	58
Hubei Jusheng Technology Co.,Ltd.	58
CONIER CHEM AND PHARMA LIMITED	58
SIMAGCHEM CORP	58
Hefei TNJ Chemical Industry Co.,Ltd.	58
Dideu Industries Group Limited	58
Dayang Chem (Hangzhou) Co.,Ltd.	58
changzhou huayang technology co., ltd	58

View Lastest Price from 4-Amino-5-methoxy-2-methylbenzenesulfonic Acid manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2025-11-07	4-Amino-5-methoxy-2-methylbenzenesulfonic Acid 6471-78-9	US $0.00 / kg	1kg	99%min	20tons	HANGZHOU HAILAN CHEMICAL CO.,LTD.
2022-08-30	4-Amino-5-methoxy-2-methylbenzensulfonic acid 6471-78-9	US $1.10 / g	1g	99.00%	100 Tons Min	Dideu Industries Group Limited
2021-08-12	4-Amino-5-methoxy-2-methylbenzensulfonic acid 6471-78-9	US $15.00-10.00 / KG	1KG	99%+ HPLC	Monthly supply of 1 ton	Zhuozhou Wenxi import and Export Co., Ltd

4-Amino-5-methoxy-2-methylbenzenesulfonic Acid
6471-78-9
US $0.00 / kg
99%min
HANGZHOU HAILAN CHEMICAL CO.,LTD.

4-Amino-5-methoxy-2-methylbenzensulfonic acid
6471-78-9
US $1.10 / g
99.00%
Dideu Industries Group Limited

4-Amino-5-methoxy-2-methylbenzensulfonic acid
6471-78-9
US $15.00-10.00 / KG
99%+ HPLC
Zhuozhou Wenxi import and Export Co., Ltd

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CRESIDINE SULFONIC ACID 3-AMINO-4-METHOXY-TOLUENE-6-SULFONIC ACID 4-amino-5-methoxy-2-methylbenzensulfonic acid P-CRESIDINE-4-SULFONIC ACID p-cresidine-o-sulfonic acid PARA CRESIDINE O-SULFONIC ACID PARA CRESIDINE SULFONIC ACID 4-amino-5-methoxy-2-methyl-benzenesulfonicaci 4-amino-5-methoxy-2-methyl-Benzenesulfonicacid 4-amino-5-methoxytoluene-2-sulphonicacid 5-methoxy-2-methylsulphanilic acid 5-Methyl-o-anisidine-4-sulfonic acid ParaCresidineOrsoSulfonicAcid P-CRESIDINE-2-SULFONIC ACID 4-CRESIDINE-O-SULFONIC ACID 5-Methyl-o-anisidine-4-sulfonic acid (NH2=1) PARACRESIDINEORTHOSULFONICACID 1-Amino-2-methoxy-5-methyl-4-benzenesulfonic acid 2-Methyl-4-amino-5-methoxybenzenesulfonic acid p-Cresidine suruhonic acid 4-amino-5-methoxy-2-methyl- 4-Amino-5-methoxy-2- 2-Methoxy-5-Methyl-4-sulfoaniline 4-AMino-5-Methoxy-o-toluenesulfonic Acid Cresidine-p-sulfonic Acid Benzenesulfonic acid,4-amino-5-methoxy-2-methyl- Allura Red Impurity 2 4-Amino-5-methoxy-2-toluenesulfonic acid 4-Amino-5-methoxy-2-methylbenzenesulfonic Acid Standard 4-Amino-5-methoxy-2-methylbenzensulfonic acid ISO 9001：2015 REACH Policresulen Impurity 31 3-Amino-4-methoxyltoluene-6-sulfonic acid 6471-78-9 C8H11O4NS NH2CH3OC6H2CH3SO3H Amines Aromatics Mutagenesis Research Chemicals Sulfur & Selenium Compounds Intermediates of Dyes and Pigments