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3,4-Pyridinediamine,5-methyl-(9CI)

3,4-Pyridinediamine,5-methyl-(9CI) structure

CAS No.: 13958-86-6

Chemical Name:: 3,4-Pyridinediamine,5-methyl-(9CI)

Synonyms: 5-Methylpyridin-3,4-diaMine;5-Methylpyridine-3,4-diaMine;3,4-Diamino-5-methylpyridine;5-Methyl-3,4-pyridinediamine;3,4-Pyridinediamine, 5-methyl-;3,4-Pyridinediamine,5-methyl-(9CI)

CBNumber:: CB11271563

Molecular Formula:: C6H9N3

Molecular Weight:: 123.16

MDL Number:: MFCD10697691

MOL File:: 13958-86-6.mol

MSDS File:: SDS

Last updated:2026-05-27 23:06:32

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3,4-Pyridinediamine,5-methyl-(9CI) Properties

Melting point	149 °C
Boiling point	363.1±37.0 °C(Predicted)
Density	1.190
storage temp.	Keep in dark place,Inert atmosphere,Room temperature
pka	9.40±0.24(Predicted)

SAFETY

Risk and Safety Statements

Symbol(GHS)	GHS07
Signal word	Warning
Hazard statements	H302
Precautionary statements	P280-P305+P351+P338

3,4-Pyridinediamine,5-methyl-(9CI) price More Price(43)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Activate Scientific	AS38480	5-Methylpyridine-3,4-diamine 97%	13958-86-6	1g	$376	2026-06-04	Buy
Activate Scientific	AS38480	5-Methylpyridine-3,4-diamine 97%	13958-86-6	5g	$1218	2026-06-04	Buy
Matrix Scientific	301582	5-Methylpyridine-3,4-diamine	13958-86-6	100.00mg	$67	2026-05-19	Buy
Matrix Scientific	301582	5-Methylpyridine-3,4-diamine	13958-86-6	250.00mg	$115	2026-05-19	Buy
Matrix Scientific	301582	5-Methylpyridine-3,4-diamine	13958-86-6	1.00g	$296	2026-05-19	Buy

Product number	Packaging	Price	Buy
AS38480	1g	$376	Buy
AS38480	5g	$1218	Buy
301582	100.00mg	$67	Buy
301582	250.00mg	$115	Buy
301582	1.00g	$296	Buy

3,4-Pyridinediamine,5-methyl-(9CI) Chemical Properties, Uses, Production

Synthesis

18227-67-3

13958-86-6

The general procedure for the synthesis of 5-methyl-3,4-diaminopyridine from 4-amino-5-methyl-3-nitropyridine was as follows: a mixture of 4-amino-5-methyl-3-nitropyridine (1.198 g), iron powder (1.748 g), ethanol (52 mL), and hydrochloric acid (13 mL) was heated and refluxed for 3 hours. After completion of the reaction, the mixture was cooled to room temperature and ethanol was removed by distillation. The resulting suspension was diluted to 50 mL with water and the pH was adjusted to 13 by slow addition of 2N NaOH solution. extraction was carried out with ethyl acetate (3 x 70 mL), the organic phases were combined and dried with anhydrous sodium sulfate. Finally, the solvent was evaporated to give 0.579 g (60% yield) of 5-methyl-3,4-diaminopyridine.

References

[1] Patent: WO2005/63744, 2005, A2. Location in patent: Page/Page column 232

3,4-Pyridinediamine,5-methyl-(9CI) Preparation Products And Raw materials

Raw materials

4-Pyridinamine, 3-methyl-5-nitro- Hydrochloric acid Ethanol Iron

Preparation Products

3,4-Pyridinediamine,5-methyl-(9CI) Suppliers

Global Suppliers ( 63)

Supplier	Tel	Email	Country	ProdList	Advantage
JinYan Chemicals(ShangHai) Co.,Ltd.	13817811078	sales@jingyan-chemical.com	China	9963	60
Nanjing Chemlin Chemical Co., Ltd	025-83697070 13770331960	info@chemlin.com.cn	China	16305	64
Shanghai Hanhong Scientific Co.,Ltd.	021-54306202 13764082696	info@hanhongsci.com	China	42917	64
Jinan Trio PharmaTech Co., Ltd.	0531-88811783	sales@trio-pharmatech.com	China	1856	62
China Langchem Inc.	0086-21-58956006		China	7798	57
Chiba Pharmaceutical Science and technology Co, Ltd.	0531-81313138 13066006660	chibapharm@foxmail.com	China	3996	55
Chimica Laboratories Co., Ltd	0086-573-82585213	bai@chimicalabs.com	China	861	64
Modachem Shanghai Co., Ltd	+86 (0)21 51320687 51371369 1744605818		China	1576	58
Nanjing Duolong Bio-tech Co.,Ltd.	18905173768	52513593@qq.com	China	2337	50
Nanjing Huang Tai Pharmaceutical Technology Co. Ltd.	025-58803135 18551845925	3569572487@qq.com	China	391	58

Supplier	Advantage
JinYan Chemicals(ShangHai) Co.,Ltd.	60
Nanjing Chemlin Chemical Co., Ltd	64
Shanghai Hanhong Scientific Co.,Ltd.	64
Jinan Trio PharmaTech Co., Ltd.	62
China Langchem Inc.	57
Chiba Pharmaceutical Science and technology Co, Ltd.	55
Chimica Laboratories Co., Ltd	64
Modachem Shanghai Co., Ltd	58
Nanjing Duolong Bio-tech Co.,Ltd.	50
Nanjing Huang Tai Pharmaceutical Technology Co. Ltd.	58

View Latest Price from 3,4-Pyridinediamine,5-methyl-(9CI) manufacturers

Image	Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
	2019-12-27	3,4-Pyridinediamine,5-methyl-(9CI) 13958-86-6	$1.00	1KG	99%	200kg	Career Henan Chemical Co
	2019-11-15	3,4-Pyridinediamine,5-methyl-(9CI) 13958-86-6		1g	95%min	30kgs/month	Nanjing jinheyou Trading Co., Ltd.

3,4-Pyridinediamine,5-methyl-(9CI)
13958-86-6
$1.00
99%
Career Henan Chemical Co

3,4-Pyridinediamine,5-methyl-(9CI)
13958-86-6
$0.00
95%min
Nanjing jinheyou Trading Co., Ltd.

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3,4-Pyridinediamine,5-methyl-(9CI) 5-Methyl-3,4-pyridinediamine 3,4-Diamino-5-methylpyridine 5-Methylpyridine-3,4-diaMine 5-Methylpyridin-3,4-diaMine 3,4-Pyridinediamine, 5-methyl- 13958-86-6 PYRIDINE