3H-Pyrazol-3-one,1,2-dihydro-1,5-dimethyl-4-nitroso-2-phenyl

Modify Date: 2026-08-02 18:05:06

3H-Pyrazol-3-one,1,2-dihydro-1,5-dimethyl-4-nitroso-2-phenyl structure	Common Name	3H-Pyrazol-3-one,1,2-dihydro-1,5-dimethyl-4-nitroso-2-phenyl
	CAS Number	885-11-0	Molecular Weight	217.22400
	Density	1.26g/cm3	Boiling Point	306.5ºC at 760 mmHg
	Molecular Formula	C₁₁H₁₁N₃O₂	Melting Point	N/A
	MSDS	N/A	Flash Point	139.2ºC

Name	1,5-dimethyl-4-nitroso-2-phenylpyrazol-3-one
Synonym	More Synonyms

Density	1.26g/cm3
Boiling Point	306.5ºC at 760 mmHg
Molecular Formula	C₁₁H₁₁N₃O₂
Molecular Weight	217.22400
Flash Point	139.2ºC
Exact Mass	217.08500
PSA	56.36000
LogP	1.88230
Index of Refraction	1.621
InChIKey	IEODZSWSXNQPQL-UHFFFAOYSA-N
SMILES	Cc1c(N=O)c(=O)n(-c2ccccc2)n1C

CHEMICAL IDENTIFICATION

RTECS NUMBER :: CD3027000

CHEMICAL NAME :: Antipyrine, 4-nitroso-

CAS REGISTRY NUMBER :: 885-11-0

BEILSTEIN REFERENCE NO. :: 0201816

LAST UPDATED :: 199612

DATA ITEMS CITED :: 1

MOLECULAR FORMULA :: C11-H11-N3-O2

MOLECULAR WEIGHT :: 217.25

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

MUTATION DATA

TYPE OF TEST :: Mutation in microorganisms

TEST SYSTEM :: Bacteria - Salmonella typhimurium

DOSE/DURATION :: 10 ug/plate

REFERENCE :: MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 57,287,1978

HS Code	2933199090

Antipyrine

CAS#:60-80-0

~23%

3H-Pyrazol-3-on...

CAS#:885-11-0

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Literature: Stankyavichyus, A. P.; Terent'ev, P. B.; Solov'ev, O. A. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1989 , vol. 25, # 9 p. 1041 - 1045 Khimiya Geterotsiklicheskikh Soedinenii, 1989 , # 9 p. 1243 - 1247

Antipyrine

CAS#:60-80-0

nitrogen dioxide

CAS#:10544-72-6

3H-Pyrazol-3-on...

CAS#:885-11-0

1,5-dimethyl-4-...

CAS#:30672-29-8

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Literature: Thoms; Schnupp Justus Liebigs Annalen der Chemie, 1923 , vol. 434, p. 310

Precursor 2
CAS#:60-80-0 Antipyrine CAS#:10544-72-6 nitrogen dioxide
DownStream 10
CAS#:3615-24-5 Ramifenazone CAS#:83-15-8 4-Acetamidoantipyrin CAS#:58-15-1 aminophenazone CAS#:10077-97-1 Carbamic acid,(...
CAS#:83-07-8 4-Aminoantipyrine CAS#:30957-66-5 1,5-dimethyl-4-... CAS#:1672-58-8 4-Formamidoanti... CAS#:74051-60-8 3-Antipyrinyl-1...
CAS#:5702-68-1 N-(1,5-dimethyl... CAS#:622-36-6 1-methyl-2-phen...

HS Code	2933199090
Summary	2933199090. other compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Name: HIV Cellular Data
Source: NIAID
Target: N/A
External Id: HIV Cellular Data

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1,5-dimethyl-4-nitroso-2-phenyl-1,2-dihydro-pyrazol-3-one

4-Nitrosoantipyrin

2,3-dimethyl-4-nitroso-1-phenylpyrazol-5-one

2,3-Dimethyl-4-nitroso-1-phenyl-3-pyrazolin-5-one

4-Nitrosoantipyrine

EINECS 212-941-6

ANTIPYRINE,4-NITROSO

4-nitrosophenazone

1,5-dimethyl-4-nitroso-2-phenyl-1H-pyrazol-3(2H)-one

1,2-dihydro-2,3-dimethyl-4-nitroso-1-phenylpyrazol-5-one

The content on this webpage is sourced from various professional data sources. If you have any questions or concerns regarding the content, please feel free to contact service1@chemsrc.com.

3H-Pyrazol-3-one,1,2-dihydro-1,5-dimethyl-4-nitroso-2-phenyl

Names

Chemical & Physical Properties

Toxicological Information

CHEMICAL IDENTIFICATION

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

MUTATION DATA

Safety Information

Synthetic Route

Precursor & DownStream

Customs

Bioassay

Synonyms

The content on this webpage is sourced from various professional data sources. If you have any questions or concerns regarding the content, please feel free to contact service1@chemsrc.com.