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4,6-DIMETHYL-1,2-PHENYLENEDIAMINE

4,6-DIMETHYL-1,2-PHENYLENEDIAMINE structure

CAS No.: 3171-45-7

Chemical Name:: 4,6-DIMETHYL-1,2-PHENYLENEDIAMINE

Synonyms: 4,5-DIMETHYL-1,2-PHENYLENEDIAMINE;4,5-Dimethyl-ortho-phenylenediamine;4,5-Dimethyl-1,2-benzenediamine;4,5-DimethyL;4-flouro-2-nitro aniline;4,5-DIMETHYL-BENZENE-1,2-DIAMINE;4,5-DIAMINO-O-XYLENE;Methylcobalamin Impurity 1;2-AMINO-4,5-DIMETHYLANILINE;4,5-Dimethyl-2-amino-aniline

CBNumber:: CB4292911

Molecular Formula:: C8H12N2

Molecular Weight:: 136.19

MDL Number:: MFCD00007729

MOL File:: 3171-45-7.mol

MSDS File:: SDS

Last updated:2026-05-28 02:17:09

Product description	Number	Pack Size	Price
4,5-Dimethyl-1,2-phenylenediamine 98%	D176605	5g	$128
4,5-Dimethyl-1,2-phenylenediamine 98%	D176605	25g	$207
4,5-Dimethyl-1,2-phenylenediamine >98.0%(HPLC)	D1083	5g	$63
4,5-Dimethyl-1,2-phenylenediamine >98.0%(HPLC)	D1083	25g	$255
4,5-Dimethyl-1,2-phenylenediamine	FD07754	0.025kg	$150
More product size

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4,6-DIMETHYL-1,2-PHENYLENEDIAMINE Properties

Melting point	127-129 °C (lit.)
Boiling point	279.6±35.0 °C(Predicted)
Density	1.076±0.06 g/cm3(Predicted)
storage temp.	2-8°C
pka	5.02±0.10(Predicted)
form	Crystalline Mass, Crystals or Chunks
color	White to yellow to brownish
Water Solubility	Slightly soluble in water.
Sensitive	Air & Light Sensitive
InChI	InChI=1S/C8H12N2/c1-5-3-7(9)8(10)4-6(5)2/h3-4H,9-10H2,1-2H3
InChIKey	XSZYBMMYQCYIPC-UHFFFAOYSA-N
SMILES	C1(N)=CC(C)=C(C)C=C1N
CAS DataBase Reference	3171-45-7(CAS DataBase Reference)
FDA UNII	1OJ9D3R6NH
EPA Substance Registry System	1,2-Benzenediamine, 4,5-dimethyl- (3171-45-7)
UNSPSC Code	12352100
NACRES	NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS07

Signal word

Warning

Hazard statements

H302+H312+H332-H315-H319-H302-H312-H332-H335

Precautionary statements

P304+P340-P305+P351+P338-P405-P501a-P261-P264-P270-P271-P280-P301+P312+P330-P302+P352+P312+P362+P364-P304+P340+P312-P305+P351+P338+P337+P313-P501

PPE

dust mask type N95 (US), Eyeshields, Gloves

Hazard Codes

Risk Statements

36/37/38-36

Safety Statements

26-36

RIDADR

2811

WGK Germany

Hazard Note

Irritant

TSCA

TSCA listed

HazardClass

6.1(a)

PackingGroup

HS Code

29212900

Storage Class

11 - Combustible Solids

NFPA 704

	1
3		1

4,6-DIMETHYL-1,2-PHENYLENEDIAMINE price More Price(60)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	D176605	4,5-Dimethyl-1,2-phenylenediamine 98%	3171-45-7	5g	$128	2026-04-30	Buy
Sigma-Aldrich	D176605	4,5-Dimethyl-1,2-phenylenediamine 98%	3171-45-7	25g	$207	2026-04-30	Buy
TCI Chemical	D1083	4,5-Dimethyl-1,2-phenylenediamine >98.0%(HPLC)	3171-45-7	5g	$63	2026-04-30	Buy
TCI Chemical	D1083	4,5-Dimethyl-1,2-phenylenediamine >98.0%(HPLC)	3171-45-7	25g	$255	2026-04-30	Buy
Biosynth	FD07754	4,5-Dimethyl-1,2-phenylenediamine	3171-45-7	0.025kg	$150	2026-06-04	Buy

Product number	Packaging	Price	Buy
D176605	5g	$128	Buy
D176605	25g	$207	Buy
D1083	5g	$63	Buy
D1083	25g	$255	Buy
FD07754	0.025kg	$150	Buy

4,6-DIMETHYL-1,2-PHENYLENEDIAMINE Chemical Properties,Uses,Production

Chemical Properties

White to light brown solid

Uses

Employed in the preparation of transition metal complexes1 and quinoxalinones.2

Uses

4, 5-dimethyl-o-phenylenediamine used in the determination of aromatic aldehydes by high performance liquid chromatography after precolumn fluorescent derivatization. For the determination of vanillin.

Synthesis Reference(s)

Tetrahedron Letters, 42, p. 2277, 2001 DOI: 10.1016/S0040-4039(01)00163-0

Synthesis

6972-71-0

3171-45-7

(4.1) The reducing system was prepared by adding 32 mL of deionized water to 72 mL of anhydrous ethanol solution containing 12.9 g (57.17 mmol; 9.5 eq.) of SnCl2-2H2O. Subsequently, 1 g (6.02 mmol; 1 eq.) of 4,5-dimethyl-2-nitroaniline was added in batches at room temperature and under inert atmosphere. The reaction mixture was heated to reflux for 1 h. The reaction process was monitored by thin layer chromatography (TLC) (unfolding agent: ethyl acetate). After completion of the reaction, it was cooled to room temperature and the reaction mixture was poured into 120 mL of water and neutralized with NaHCO3. The tin salts and NaHCO3 were removed by filtration through filter paper. the filtrate was extracted with dichloromethane (organic phase 1) and the residual solid was continuously extracted with dichloromethane through a Soxhlet extractor for 2 days. The dichloromethane phase after Soxhlet extraction was washed once with water (organic phase 2). Organic phases 1 and 2 were combined, dried over anhydrous MgSO4, filtered and concentrated. The crude product was purified by silica gel fast column chromatography (elution gradient: cyclohexane/ethyl acetate 2/8; pure ethyl acetate; ethyl acetate/methanol 95/5). The resulting target compound (No. cs 357-1) was an orange solid in quantitative yield. rf = 0.33 (ethyl acetate). 1H NMR (CDCl3, ppm): 2.12 (s, 6H, 2 x CH3); 6.52 (s, 2H, 2 x aromatic CH). 13C NMR (CDCl3, ppm): 18.99 (CH3); 118.64 (aromatic CH); 128.02 (quaternary carbon-CH3); 132.38 (quaternary carbon-N). Mass spectrum (MS): [M + H]+ m/z = 137.1; [M + Na]+ m/z = 159.1; [M + K]+ m/z = 175.2.

References

[1] Patent: WO2011/117830, 2011, A1. Location in patent: Page/Page column 20
[2] Chemistry - A European Journal, 2018, vol. 24, # 36, p. 8989 - 8993
[3] ChemCatChem, 2016, vol. 8, # 15, p. 2461 - 2465
[4] Biochemische Zeitschrift, 1956, vol. 327, p. 422,447
[5] Chemische Berichte, 1901, vol. 34, p. 2255

4,6-DIMETHYL-1,2-PHENYLENEDIAMINE Preparation Products And Raw materials

Raw materials

Stannous chloride dihydrate Ethanol Diethyl ether Nitric acid Sodium hydroxide

3,4-Dimethylaniline Sulfuric acid 4,5-DIMETHYL-2-NITROANILINE Hydrochloric acid Water

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Preparation Products

Mecobalamin Impurity LUMICHROME 6,7-dimethyl-2,3-diphenylquinoxaline 1H-Benzimidazole-2-methanol,5,6-dimethyl-(9CI) 1H-Benzimidazole, 2-cyclopropyl-5,6-dimethyl-

4,6-DIMETHYL-1,2-PHENYLENEDIAMINE Suppliers

Global( 226)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Win-Win chemical CO., Limited	+86-0086-577-64498589 +86-15355981851	sales@win-winchemical.com	China	14304	58
Hebei Yanxi Chemical Co., Ltd.	+8618531123677	faithe@yan-xi.com	China	5853	58
Shanghai UCHEM Inc.	+862156762820 +86-13564624040	sales@myuchem.com	China	8741	58
Capot Chemical Co.,Ltd.	+86-（0）57185586718 +86-13336195806	sales@capot.com	China	29640	60
Shanghai Daken Advanced Materials Co.,Ltd	+86-2158073036	info@dakenam.com	China	13901	58
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21587	55
ATK CHEMICAL COMPANY LIMITED	+undefined-21-51877795	ivan@atkchemical.com	China	33024	60
career henan chemical co	+86-0371-86658258 +8613203830695	sales@coreychem.com	China	29815	58
Changzhou Ansciep Chemical Co., Ltd.	+86 519 86305871	sales@ansciepchem.com	CHINA	4241	58
Changzhou PBpharmaceutical R&D Co.,Ltd	0519-83990708	info@pbpharm.com	CHINA	498	58

Supplier	Advantage
Win-Win chemical CO., Limited	58
Hebei Yanxi Chemical Co., Ltd.	58
Shanghai UCHEM Inc.	58
Capot Chemical Co.,Ltd.	60
Shanghai Daken Advanced Materials Co.,Ltd	58
Henan Tianfu Chemical Co.,Ltd.	55
ATK CHEMICAL COMPANY LIMITED	60
career henan chemical co	58
Changzhou Ansciep Chemical Co., Ltd.	58
Changzhou PBpharmaceutical R&D Co.,Ltd	58

View Lastest Price from 4,6-DIMETHYL-1,2-PHENYLENEDIAMINE manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2026-06-08	4,5-Dimethyl-1,2-phenylenediamine 3171-45-7	$30.00-296.00	25g	0.98	25kg	Shanghai UCHEM Inc.
2025-06-20	4,6-DIMETHYL-1,2-PHENYLENEDIAMINE 3171-45-7	$50.00	1kg	0.99	10000	Hebei Yanxi Chemical Co., Ltd.
2024-07-08	4,5-Dimethyl-1,2-benzenediamine 3171-45-7	$1.00	1Kg	98%	20T	Shaanxi Dideu Medichem Co. Ltd

4,5-Dimethyl-1,2-phenylenediamine
3171-45-7
$30.00-296.00
0.98
Shanghai UCHEM Inc.

4,6-DIMETHYL-1,2-PHENYLENEDIAMINE
3171-45-7
$50.00
0.99
Hebei Yanxi Chemical Co., Ltd.

4,5-Dimethyl-1,2-benzenediamine
3171-45-7
$1.00
98%
Shaanxi Dideu Medichem Co. Ltd

4,6-DIMETHYL-1,2-PHENYLENEDIAMINE Spectrum

4,6-DIMETHYL-1,2-PHENYLENEDIAMINE(3171-45-7)MS 4,6-DIMETHYL-1,2-PHENYLENEDIAMINE(3171-45-7)¹HNMR 4,6-DIMETHYL-1,2-PHENYLENEDIAMINE(3171-45-7)¹³CNMR 4,6-DIMETHYL-1,2-PHENYLENEDIAMINE(3171-45-7)IR1 4,6-DIMETHYL-1,2-PHENYLENEDIAMINE(3171-45-7)IR2 4,6-DIMETHYL-1,2-PHENYLENEDIAMINE(3171-45-7)Raman

3171-45-7(4,6-DIMETHYL-1,2-PHENYLENEDIAMINE)Related Search:

RIBOFLAVINE TETRABUTYRATE 4,6-DIMETHYL-1,2-PHENYLENEDIAMINE 5,6-DIMETHYL-2-BENZIMIDAZOLINONE 4,5-DIMETHYL-2-NITROPHENYL ISOCYANATE Riboflavin 5'-Monophosphate Sodium Salt

4,5-DIMETHYL-2-NITROANILINE Pendimethalin FLAVIN ADENINE DINUCLEOTIDE LUMIFLAVINE N,N-DIMETHYL-1,4-PHENYLENEDIAMINE OXALATE

N N-DIMETHYL-1 4-PHENYLENEDIAMINE SULFA& N,N-DIMETHYL-1,3-PHENYLENEDIAMINE DIHYDROCHLORIDE N,N-DIMETHYL-1,4-PHENYLENEDIAMINE SULFATE N,N-DIMETHYL-1,4-PHENYLENEDIAMINE DIAZONIUM CHLORIDE ZINC CHLORIDE N,N-DIMETHYL-P-PHENYLENEDIAMINE MONOHYDROCHLORIDE

N,N-DIMETHYL-1,4-PHENYLENEDIAMINE Riboflavin N,N'-(2,5-Dimethyl-1,4-phenylene)bis(3-oxobutyramide)

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1,2-Benzenediamine, 4,5-dimethyl- 4,5-Dimethyl-1,2-diaminobenzene 4,5-Dimethyl-1,2-phenylenediamine 98% 4,5-dimethyl-2-benzenediamine 2-AMINO-4,5-DIMETHYLPHENYLAMINE 2-AMINO-4,5-DIMETHYLANILINE 4,5-DIAMINO-O-XYLENE 4,5-DIAMINO-1,2-DIMETHYLBENZENE 4,5-DIMETHYL-O-PHENYLENE DIAMINE 4,6-DIMETHYL-1,2-PHENYLENEDIAMINE 1,2-DIMETHYL-4,5-DIAMINOBENZENE 4,5-DIMETHYL-1,2-PHENYLENEDIAMINE 95+% 1,2-DIAMINO-4,5-DIMETHYLBENZENE 1,2-DiaMino-4,5-diMethylbenzene[4,5-DiMethyl-1,2-phenylenediaMine] 4,5-Dimethyl-1,2-phenylenediamine,4,5-Diamino-o-xylene 4,5-Dimethyl-1,2-phenylenediamine >95.0%(T) 4,5-DiMethyl-o-phenylenediaMine Monohydrate, 98% 4,5-Diamino-o-xylene, 4,5-Dimethylphenylene-1,2-diamine 4,5-Dimethylbenzene-1,2-diamine 98+% 4,5-bis(methyl-d3)benzene-1,2-diamine 4,5-Dimethylbenzene-1,2-diamine 98% Methylcobalamin Impurity 1 4,5-Dimethyl-1,2-phenylenediamine > 4,5-Dimethyl-1,2-phenylenediamine, 95%, for synthesis 4,6-DIMETHYL-1,2-PHENYLENEDIAMINE ISO 9001：2015 REACH 4,5-DIMETHYL-BENZENE-1,2-DIAMINE Cyanocobalamin /Vitamin B12 Impurity 17 4,5-Dimethyl-2-amino-aniline 4,5-Dimethyl-1,2-benzenediamine 4,5-DIMETHYL-1,2-PHENYLENEDIAMINE 4,5-Dimethyl-ortho-phenylenediamine 4,5-DimethyL 4-flouro-2-nitro aniline 3171-45-7 CH32C6H2NH22 AMINE Organic Building Blocks Nitrogen Compounds Polyamines Building Blocks Building Blocks Chemical Synthesis Nitrogen Compounds Organic Building Blocks Polyamines Anilines, Aromatic Amines and Nitro Compounds intermediate

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4,6-DIMETHYL-1,2-PHENYLENEDIAMINE

4,6-DIMETHYL-1,2-PHENYLENEDIAMINE Properties

SAFETY

Risk and Safety Statements

4,6-DIMETHYL-1,2-PHENYLENEDIAMINE price More Price(60)

4,6-DIMETHYL-1,2-PHENYLENEDIAMINE Chemical Properties,Uses,Production

Chemical Properties

Uses

Uses

Synthesis Reference(s)

Synthesis

References

4,6-DIMETHYL-1,2-PHENYLENEDIAMINE Preparation Products And Raw materials

Raw materials

Preparation Products

4,6-DIMETHYL-1,2-PHENYLENEDIAMINE Suppliers

View Lastest Price from 4,6-DIMETHYL-1,2-PHENYLENEDIAMINE manufacturers

4,6-DIMETHYL-1,2-PHENYLENEDIAMINE Spectrum

3171-45-7(4,6-DIMETHYL-1,2-PHENYLENEDIAMINE)Related Search: