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4-Hydroxy-6-mercaptopyrazolo[3,4-d]pyrimidine

4-Hydroxy-6-mercaptopyrazolo[3,4-d]pyrimidine structure

CAS No.: 24521-76-4

Chemical Name:: 4-Hydroxy-6-mercaptopyrazolo[3,4-d]pyrimidine

Synonyms: NSC 1391;6-MERCAPTOPYRAZOLO[3,4-D]PYRIMIDIN-4-OL;6-MERCAPTO-1H-PYRAZOLO[3,4-D]PYRIMIDIN-4-OL;4-Hydroxy-6-mercptopyrazolo[3,4-d]pyrimidine;4-HYDROXY-6-MERCAPTOPYRAZOLE(3,4-D)PYRIMIDINE;4-Hydroxy-6-mercaptopyrazolo[3,4-d]pyrimidine;4-Hydroxy-6-mercaptopyrazolo3,4-düpyrimidine, 98%;4-Hydroxy-6-mercaptopyrazolo[3,4-d]pyrimidine,98%;4-Hydroxy-6-mercapto-1H-pyrazolo[3,4-d]pyrimidine;6-Mercapto-1H,5H,7H-pyrazolo[3,4-d]pyrimidin-4-one

CBNumber:: CB6101189

Molecular Formula:: C5H4N4OS

Molecular Weight:: 168.18

MDL Number:: MFCD00022782

MOL File:: 24521-76-4.mol

MSDS File:: SDS

Last updated:2026-09-12 18:53:44

Request For Quotation

4-Hydroxy-6-mercaptopyrazolo[3,4-d]pyrimidine Properties

Melting point	>310°C
Density	1.78±0.1 g/cm3(Predicted)
storage temp.	-20°C Freezer
solubility	Aqueous Base (Slightly), DMSO (Slightly)
pka	8.27±0.20(Predicted)
form	Crystalline Powder
color	Light yellow
BRN	140413
InChI	InChI=1S/C5H4N4OS/c10-4-2-1-6-9-3(2)7-5(11)8-4/h1H,(H3,6,7,8,9,10,11)
InChIKey	SXRSXYWROQWSGJ-UHFFFAOYSA-N
SMILES	C1(=S)NC(=O)C2C=NNC=2N1
CAS DataBase Reference	24521-76-4(CAS DataBase Reference)

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS07

Signal word

Warning

Hazard statements

H302-H315-H319-H335

Precautionary statements

P261-P264-P270-P271-P280-P301+P312-P302+P352-P304+P340-P305+P351+P338-P330-P332+P313-P337+P313-P362-P403+P233-P405-P501

Safety Statements

24/25

HS Code

29335995

NFPA 704

	1
2		0

4-Hydroxy-6-mercaptopyrazolo[3,4-d]pyrimidine price More Price(36)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Usbiological	H9110-12F	4-Hydroxy-6-mercaptopyrazolo[3,4-d]pyrimidine	24521-76-4	1g	$382	2026-06-03	Buy
Usbiological	278729	4-Hydroxy-6-mercaptopyrazolo[3,4-d]pyrimidine Asreported	24521-76-4	500mg	$496	2026-06-03	Buy
Usbiological	278729	4-Hydroxy-6-mercaptopyrazolo[3,4-d]pyrimidine Asreported	24521-76-4	1g	$625	2026-06-03	Buy
Usbiological	278729	4-Hydroxy-6-mercaptopyrazolo[3,4-d]pyrimidine Asreported	24521-76-4	2g	$878	2026-06-03	Buy
Usbiological	278729	4-Hydroxy-6-mercaptopyrazolo[3,4-d]pyrimidine Asreported	24521-76-4	5g	$1310	2026-06-03	Buy

Product number	Packaging	Price	Buy
H9110-12F	1g	$382	Buy
278729	500mg	$496	Buy
278729	1g	$625	Buy
278729	2g	$878	Buy
278729	5g	$1310	Buy

4-Hydroxy-6-mercaptopyrazolo[3,4-d]pyrimidine Chemical Properties, Uses, Production

Chemical Properties

Off White Powder

Uses

4-Hydroxy-6-mercaptopyrazolo[3,4-d]pyrimidine (cas# 24521-76-4) is a compound useful in organic synthesis.

4-Hydroxy-6-mercaptopyrazolo[3,4-d]pyrimidine Preparation Products And Raw materials

Raw materials

Sodium sulfate 3-Amino-4-pyrazolecarbonitrile Sodium hydroxide Sulfuric acid Thiourea

Preparation Products

4-Hydroxy-6-mercaptopyrazolo[3,4-d]pyrimidine Suppliers

Global Suppliers ( 63)

Supplier	Tel	Email	Country	ProdList	Advantage
Shanghai He-H Chemical Technology Co., Ltd	18621911604	987025641@qq.com	China	1233	58
J & K SCIENTIFIC LTD.	18210857532 18210857532	jkinfo@jkchemical.com	China	96815	76
3B Pharmachem (Wuhan) International Co.,Ltd.	18930552037	3bsc@sina.com	China	15813	69
Alfa Aesar	400-6106006	saleschina@alfa-asia.com	China	30103	84
Energy Chemical	400-0056266	sales8178@energy-chemical.com	China	44850	61
Chemsky（shanghai）International Co.,Ltd.	021-50135380	shchemsky@sina.com	China	32273	50
Thermo Fisher Scientific	800-810-5118	cnchemical@thermofisher.com	China	17752	75
Beijing innoChem Science & Technology Co.,Ltd.	400-810-7969 010-59572699	ningzi.li@inno-chem.com.cn	China	6122	55
9ding chemical ( Shanghai) Limited	4009209199	sales@9dingchem.com	China	22497	55
HBCChem, Inc.	+1-510-219-6317	sales@hbcchem.com	United States	10628	60

Supplier	Advantage
Shanghai He-H Chemical Technology Co., Ltd	58
J & K SCIENTIFIC LTD.	76
3B Pharmachem (Wuhan) International Co.,Ltd.	69
Alfa Aesar	84
Energy Chemical	61
Chemsky（shanghai）International Co.,Ltd.	50
Thermo Fisher Scientific	75
Beijing innoChem Science & Technology Co.,Ltd.	55
9ding chemical ( Shanghai) Limited	55
HBCChem, Inc.	60

View Latest Price from 4-Hydroxy-6-mercaptopyrazolo[3,4-d]pyrimidine manufacturers

Image	Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
	2025-06-25	4-HYDROXY-6-MERCAPTOPYRAZOLO[3,4-D]PYRIMIDINE 24521-76-4	$1.10	1g	99.0% min	100 tons min	Shaanxi Dideu Medichem Co. Ltd

4-HYDROXY-6-MERCAPTOPYRAZOLO[3,4-D]PYRIMIDINE
24521-76-4
$1.10
99.0% min
Shaanxi Dideu Medichem Co. Ltd

24521-76-4 (4-Hydroxy-6-mercaptopyrazolo[3,4-d]pyrimidine) Related Search:

1-(4-Methylphenyl)-6-(methylsulfanyl)-1H-pyrazolo[3,4-d]pyrimidin-4-yl 2-naphthyl ether 6-(Methylsulfanyl)-1-phenyl-1H-pyrazolo[3,4-d]pyrimidin-4-yl 3-(trifluoromethyl)phenyl ether Methyl 3-([6-(ethylsulfanyl)-1-phenyl-1H-pyrazolo[3,4-d]pyrimidin-4-yl]oxy)-2-thiophenecarboxylate 6-(Methylsulfanyl)-1-phenyl-1H-pyrazolo[3,4-d]pyrimidin-4-yl 2-naphthyl ether Methyl 3-([6-(methylsulfanyl)-1-phenyl-1H-pyrazolo[3,4-d]pyrimidin-4-yl]oxy)-2-thiophenecarboxylate

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6-(Methylsulfanyl)-1-phenyl-1H-pyrazolo[3,4-d]pyrimidin-4-yl 2,4,5-trichlorophenyl ether

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4-HYDROXY-6-MERCAPTOPYRAZOLE(3,4-D)PYRIMIDINE 6-MERCAPTOPYRAZOLO[3,4-D]PYRIMIDIN-4-OL 6-MERCAPTO-1H-PYRAZOLO[3,4-D]PYRIMIDIN-4-OL 1,5,6,7-tetrahydro-6-thioxo-4H-pyrazolo[3,4-d]pyrimidin-4-one 4-Hydroxy-6-mercaptopyrazolo3,4-düpyrimidine, 98% 4-Hydroxy-6-mercapto-1H-pyrazolo[3,4-d]pyrimidine, 98% 4-Hydroxy-6-mercaptopyrazolo[3,4-d]pyrimidine,98% 4-Hydroxy-6-mercptopyrazolo[3,4-d]pyrimidine 4-Hydroxy-6-Mercaptopyrazolo[3,4-d]pyriMidine, 98% 5GR NSC 1391 6-sulfanylidene-1,2-dihydropyrazolo[3,4-d]pyrimidin-4-one 4H-Pyrazolo[3,4-d]pyrimidin-4-one, 1,5,6,7-tetrahydro-6-thioxo- 6-Mercapto-1H,5H,7H-pyrazolo[3,4-d]pyrimidin-4-one 4-HYDROXY-6-MERCAPTOPYRAZOLO[3,4-D]PYRIMIDINE ISO 9001：2015 REACH 4-Hydroxy-6-mercapto-1H-pyrazolo[3,4-d]pyrimidine 4-Hydroxy-6-mercaptopyrazolo[3,4-d]pyrimidine 24521-76-4 C5H4N4OS Pyridines, Pyrimidines, Purines and Pteredines Nucleotides and Nucleosides Aromatics Bases & Related Reagents Nucleotides