2,4-Dihydro-4,5-dimethyl-3H-pyrazol-3-one

BGC Id:	945082872221
CAS No:	6628-22-4
Synonyms:	einecs 229-608-6 ; 2,4-dihydro-4,5-dimethyl-3h-pyrazol-3-one ; 3,4-dimethyl-5-pyrazolinone ; 3,4-dimethyl-2-pyrazolin-5-one ; 3,4-dimethylpyrazolin-5-one ; 3,4-dimethyl-5-pyrazolone ; 3,4-dimethyl-4,5-dihydro-1h-pyrazol-5-one ; nsc 60554 ; 3,4-dimethyl-Î”2-pyrazol-5-one ; 4,5-dimethyl-1,2-dihydro-pyrazol-3-one
Molecular Formula:	C5H8N2O
Molecular Weight:	112.13
EINECS:	229-608-6

Verified providers in 2026

The following notable provider has been checked and can be recommended.

Leap Chem Co., Ltd

Company type: Bulk and laboratory supplier

Phone: +852-30606658
Country: P.R.China

LEAPChem, a specialized fine chemicals supplier for research, development and production. Additionally bis-(Sodium sulfopropyl)-disulfide is supplied by us. LEAPChem provides nearly 50,000 rare and innovative chemical products to support the evolving needs of our customers in research & bulk manufacturing activities. As a highly customer-oriented enterprise, we are committed to providing high-quality customer se ...

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What other providers are available for CAS 6628-22-4?

The last intensive check and update was carried out on 2026/02/09.

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Synonyms:

einecs 229-608-6 ; 2,4-dihydro-4,5-dimethyl-3h-pyrazol-3-one ; 3,4-dimethyl-5-pyrazolinone ; 3,4-dimethyl-2-pyrazolin-5-one ; 3,4-dimethylpyrazolin-5-one ; 3,4-dimethyl-5-pyrazolone ; 3,4-dimethyl-4,5-dihydro-1h-pyrazol-5-one ; nsc 60554 ; 3,4-dimethyl-Î”2-pyrazol-5-one ; 4,5-dimethyl-1,2-dihydro-pyrazol-3-one

CAS:

6628-22-4

EINECS:

229-608-6

Molecular Formula:

C5H8N2O

MDL:

MFCD00085556

Properties

Molecular Weight:

112.13 g·mol−1

Density:

1.25

Melting point:

269-2710C

Safety Information

Hazard Classes:

Storage temperature:

Refrigerator

What other providers are available for CAS 6628-22-4?

In addition to the providers presented here for 2,4-Dihydro-4,5-dimethyl-3H-pyrazol-3-one with the CAS number 6628-22-4, there are other 15 providers with slightly different product names available for this CAS number.

3,4-Dimethyl-5-pyrazolinone

Dayang Chem (Hangzhou) Co.,Ltd. | BIOZOL Diagnostica Vertrieb GmbH | BuGuCh & Partners +8 additional providers that we know from the past