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Allopurinol impurity C

Allopurinol impurity C structure

CAS No.: 1346604-13-4

Chemical Name:: Allopurinol impurity C

Synonyms: synthesis-005;Allopurinol-001;ALLOPURINOL RC C;Allopurinol EP Imp C;Allopurinol impurity C;Allopurinol Impurity1579;Allopurinol Related CoMpound C;Allopurinol impurity C (A0350030);Allopurinol USP Related Compound C;1346604-13-4

CBNumber:: CB3587524

Molecular Formula:: C6H6N6O

Molecular Weight:: 178.15

MDL Number:: MFCD21363439

MOL File:: Mol file

MSDS File:: SDS

Last updated:2026-09-12 18:52:07

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Allopurinol impurity C Properties

Boiling point	579.3±60.0 °C(Predicted)
Density	1.85±0.1 g/cm3(Predicted)
storage temp.	2-8°C
solubility	Aqueous Base (Slightly, Heated), DMSO (Slightly)
form	solid
pka	9.36±0.50(Predicted)
Major Application	pharmaceutical
InChI	InChI=1S/C6H6N6O/c7-5(13)4-1-8-11-6(4)12-2-9-10-3-12/h1-3H,(H2,7,13)(H,8,11)
InChIKey	OFCNXPDARWKPPY-UHFFFAOYSA-N
SMILES	N1C=C(C(N)=O)C(N2C=NN=C2)=N1
FDA UNII	08NO0BP96Y
UNSPSC Code	41116107
NACRES	NA.24

SAFETY

Risk and Safety Statements

Symbol(GHS)	GHS07
Signal word	Warning
Hazard statements	H315-H319
Precautionary statements	P264-P280-P302+P352-P305+P351+P338-P332+P313-P337+P313-P362
RIDADR	UN 3077 9 / PGIII
WGK Germany	WGK 3
HS Code	2933199050
Storage Class	11 - Combustible Solids

Allopurinol impurity C price More Price(21)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	BP843	Allopurinol impurity C British Pharmacopoeia (BP) Reference Standard	1346604-13-4	10MG	$266	2026-04-30	Buy
Sigma-Aldrich	A0350030	Allopurinol impurity C European Pharmacopoeia (EP) Reference Standard	1346604-13-4	15 mg	$167	2026-04-30	Buy
Sigma-Aldrich	1013035	Allopurinol Related Compound C United States Pharmacopeia (USP) Reference Standard	1346604-13-4	25mg	$1290	2026-04-30	Buy
Sigma-Aldrich	A0350030	Allopurinol impurity C European Pharmacopoeia (EP) Reference Standard	1346604-13-4	a0350030	$153	2024-03-01	Buy
TRC	TRC-T767570-250MG	3-(4H-1,2,4-Triazol-4-yl)-1H-pyrazole-4-carboxamide	1346604-13-4	250mg	$260	2026-06-03	Buy

Product number	Packaging	Price	Buy
BP843	10MG	$266	Buy
A0350030	15 mg	$167	Buy
1013035	25mg	$1290	Buy
A0350030	a0350030	$153	Buy
TRC-T767570-250MG	250mg	$260	Buy

Allopurinol impurity C Chemical Properties, Uses, Production

Uses

3-(4H-1,2,4-Triazol-4-yl)-1H-pyrazole-4-carboxamide (Allopurinol EP Impurity C) is an impurity of Allopurinol (A547300).

Allopurinol impurity C Preparation Products And Raw materials

Raw materials

Preparation Products

Allopurinol impurity C Suppliers

Global Suppliers ( 80)

Supplier	Tel	Email	Country	ProdList	Advantage
Hefei Molake Biotechnology Co., Ltd.	0551-66336380 18956014586	983438788@qq.com	China	2469	58
J & K SCIENTIFIC LTD.	18210857532 18210857532	jkinfo@jkchemical.com	China	96815	76
Chemsky (shanghai) International Co.,Ltd	021-50135380	shchemsky@sina.com	China	15350	60
Bide Pharmatech Ltd.	400-164-7117 18317119277	product02@bidepharm.com	China	40000	60
Quality Control Solutions Ltd.	0755-66853366 13670046396	orders@qcsrm.com	China	18188	56
Jiangsu Aikon Biopharmaceutical R&D co.,Ltd.	025-66028182 17714375163	yftan@aikonchem.com	China	16674	50
BOC Sciences	16314854226	info@bocsci.com	United States	9909	65
Shanghai CR Corporation Limited	13917420128 13062833949	fred.wen@crcorporation.cn	China	9769	58
Shandong Chengchuang Blue Sea Pharmaceutical Technology Co., Ltd.	0531-58897130 15508676053	drug_impurity@sdcclh.com	China	2526	58
Shenzhen Polymeri Biochemical Technology Co., Ltd.	+86-400-002-6226	sales@rrkchem.com	China	57336	58

Supplier	Advantage
Hefei Molake Biotechnology Co., Ltd.	58
J & K SCIENTIFIC LTD.	76
Chemsky (shanghai) International Co.,Ltd	60
Bide Pharmatech Ltd.	60
Quality Control Solutions Ltd.	56
Jiangsu Aikon Biopharmaceutical R&D co.,Ltd.	50
BOC Sciences	65
Shanghai CR Corporation Limited	58
Shandong Chengchuang Blue Sea Pharmaceutical Technology Co., Ltd.	58
Shenzhen Polymeri Biochemical Technology Co., Ltd.	58

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Allopurinol Impurity 1 Allopurinol Related CoMpound F Allopurinol-d2

1of4

5-(4H-1,2,4-Triazol-4-yl)-1H-pyrazole-4-carboxamide Allopurinol Impurity 3(Allopurinol EP Impurity C)(Allopurinol USP Related Compound C ) synthesis-005 Allopurinol Related CoMpound C Allopurinol-001 5-(1,2,4-triazol-4-yl)-1H-pyrazole-4-carboxamide Allopurinol EP Imp C Allopurinol EP Impurity C（Allopurinol USP Related Compound C） Allopurinol EP Impurity C or Allopurinol USP Related Compound C 1H-Pyrazole-4-carboxamide, 3-(4H-1,2,4-triazol-4-yl)- Allopurinol EP impurity C/ Allopurinol Related Compound C Allopurinol Impurity1579 Allopurinol impurity C (A0350030) Allopurinol USP Related Compound C c .?5-(4h -1,2,4-tri a zol-4-yl)-1h -pyra zole -4-c a rb oxa mi d e , 1346604-13-4 3-(4H-1,2,4-Triazol-4-yl)-1H-pyrazole-4-carboxamide (3-(4H-1,2,4-triazol-4-yl)-1H-pyrazole-4-carboxamide (Allopurinol Impurity) ALLOPURINOL RC C Allopurinol EP Impurity C Allopurinol USP RC C 3-(4H-1,2,4-triazole-4-yl)-1H-pyridineazole-4-carboxamide Allopurinol impurity C 1346604-13-4 136604-13-4