1H-Pyrazol-3(2H)-one

BGC Id:	785927459448
CAS No:	137-45-1
Synonyms:	pyrazol-3-ol ; 1,2-dihydropyrazol-3-on ; nsc 520837 ; 1,2-dihydropyrazol-3-one ; 1,2-dihydro-3h-pyrazol-3-one ; 1h-pyrazol-3-one ; pyrazol-5-ol ; 3-hydroxypyrazole ; 3-pyrazolone ; 4-pyrazolin-3-one
Molecular Formula:	C3H4N2O
Molecular Weight:	84.07666
EINECS:

Listed are 2 international and reliable suppliers for 1H-Pyrazol-3(2H)-one. They are coming from 1 countries around the world. These vendors belong to 2 different business types like 'Leading producer' and 'Leading producer'
Please contact all the below listed distributors/manufacturers for 1H-Pyrazol-3(2H)-one and ask for prices, package standards and transport possibilities. Our registered distributors will help you to get all necessary information and product specifications.

registered suppliers of 1H-Pyrazol-3(2H)-one worldwide

Verified providers in 2026

The following 2 notable providers have been checked and can be recommended.

Dayang Chem

Capot Chemical

What other providers are available for CAS 137-45-1?

The last intensive check and update was carried out on 2026/04/28.

Identify

Synonyms:

pyrazol-3-ol ; 1,2-dihydropyrazol-3-on ; nsc 520837 ; 1,2-dihydropyrazol-3-one ; 1,2-dihydro-3h-pyrazol-3-one ; 1h-pyrazol-3-one ; pyrazol-5-ol ; 3-hydroxypyrazole ; 3-pyrazolone ; 4-pyrazolin-3-one

CAS:

137-45-1

EINECS:

Molecular Formula:

C3H4N2O

MDL:

MFCD20527386

Properties

Molecular Weight:

84.07666 g·mol−1

Suppliers

Dayang Chem (Hangzhou) Co.,Ltd.

Company type: Leading producer

Hangzhou DayangChem Co. Ltd is a comprehensive entity which specializes in development, production and trade of pharmaceutical, agrochemical and dyestuff intermediates as well as some special type reagents. We have an own factory and share enterprises. We act also as agent of many chemical factories and promote their products to the international market at very competitive price. We take "Credi first, Clients supreme" as our aim. Additionally p-Cresol isovalerate is supplied by us. We expect to cooperate with more partners in ...

Country: P.R.China Phone: +86-571-88938639 Telefax: +86-571-8893-8652

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Capot Chemical Co., Ltd.

Company type: Leading producer

Country: P.R.China
Phone: +86-571-85586718
Telefax: +86-571-85864795

Welcome to Capotchem • Established in 1996 ,Capot Chemical Co.,Ltd is a fine organics manufacturing facility which located in Hangzhou,P.R.China. We are supplier of 2-Amino-4-chloromethythiazole hydrochloride. We produce a wide range of organics, especially fluorine, boronic acids, amino acids, unnatural amino acids, peptide, cross linkers, organocatalysts, chiral building blocks, heterocyclic compounds and other active pharmaceutical ingredients compounds. We are certified to the ISO 9001:2000 Standards, have a safety management syste ...

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What other providers are available for CAS 137-45-1?

In addition to the providers presented here for 1H-Pyrazol-3(2H)-one with the CAS number 137-45-1, there are other 11 providers with slightly different product names available for this CAS number.

1H-Pyrazol-3-ol

+1 additional providers that we know from the past

3H-Pyrazol-3-one

+1 additional providers that we know from the past

1,2-Dihydro-3H-pyrazol-3-one

H&Z Industry Co.,Ltd | Leap Chem Co., Ltd +5 additional providers that we know from the past

3H-Pyrazol-3-one,1,2-dihydro-

Shanghai Hanhong Scientific Co., Ltd.