3,4-Dichloro-1-methyl-1H-pyrrole-2,5-dione

Modify Date: 2025-08-21 14:06:53

3,4-Dichloro-1-methyl-1H-pyrrole-2,5-dione structure	Common Name	3,4-Dichloro-1-methyl-1H-pyrrole-2,5-dione
	CAS Number	1123-61-1	Molecular Weight	179.989
	Density	1.6±0.1 g/cm3	Boiling Point	205.7±40.0 °C at 760 mmHg
	Molecular Formula	C₅H₃Cl₂NO₂	Melting Point	N/A
	MSDS	N/A	Flash Point	78.2±27.3 °C

Name	3,4-dichloro-1-methylpyrrole-2,5-dione
Synonym	More Synonyms

Density	1.6±0.1 g/cm3
Boiling Point	205.7±40.0 °C at 760 mmHg
Molecular Formula	C₅H₃Cl₂NO₂
Molecular Weight	179.989
Flash Point	78.2±27.3 °C
Exact Mass	178.954086
PSA	37.38000
LogP	0.71
Vapour Pressure	0.2±0.4 mmHg at 25°C
Index of Refraction	1.576

CHEMICAL IDENTIFICATION

RTECS NUMBER :: ON5200000

CHEMICAL NAME :: Maleimide, 2,3-dichloro-N-methyl-

CAS REGISTRY NUMBER :: 1123-61-1

BEILSTEIN REFERENCE NO. :: 0127988

LAST UPDATED :: 199612

DATA ITEMS CITED :: 3

MOLECULAR FORMULA :: C5-H3-Cl2-N-O2

MOLECULAR WEIGHT :: 179.99

WISWESSER LINE NOTATION :: T5VNVJ B1 DG EG

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 4 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: ARTODN Archives of Toxicology. (Springer-Verlag, Heidelberger Pl. 3, D-1000 Berlin 33, Fed. Rep. Ger.) V.32- 1974- Volume(issue)/page/year: 37,15,1976

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 10 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: CSLNX* U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. (Aberdeen Proving Ground, MD 21010) Volume(issue)/page/year: NX#03682 ** REPRODUCTIVE DATA **

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Intraperitoneal

DOSE :: 3100 ug/kg

SEX/DURATION :: female 9 day(s) after conception

TOXIC EFFECTS :: Reproductive - Specific Developmental Abnormalities - other developmental abnormalities Reproductive - Fertility - post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants)

REFERENCE :: ARTODN Archives of Toxicology. (Springer-Verlag, Heidelberger Pl. 3, D-1000 Berlin 33, Fed. Rep. Ger.) V.32- 1974- Volume(issue)/page/year: 37,15,1976

HS Code	2925190090

Dichloromaleic ...

CAS#:1122-17-4

Methylamine hyd...

CAS#:593-51-1

~77%

3,4-Dichloro-1-...

CAS#:1123-61-1

Literature: Delarue-Cochin, Sandrine; McCort-Tranchepain, Isabelle Organic and Biomolecular Chemistry, 2009 , vol. 7, # 4 p. 706 - 716

Dichloromaleic ...

CAS#:1122-17-4

3,4-Dichloro-1-...

CAS#:1123-61-1

Literature: Eli Lilly and Company Patent: US5859261 A1, 1999 ;

Dichloromaleic ...

CAS#:1122-17-4

methylamine

CAS#:74-89-5

~55%

3,4-Dichloro-1-...

CAS#:1123-61-1

Literature: Slater, Martin J.; Cockerill, Stuart; Baxter, Robert; Bonser, Robert W.; Gohil, Kam; Gowrie, Clare; Robinson, J. Edward; Littler, Edward; Parry, Nigel; Randall, Roger; Snowden, Wendy Bioorganic and Medicinal Chemistry, 1999 , vol. 7, # 6 p. 1067 - 1074

N-Methylmaleimide

CAS#:930-88-1

3,4-Dichloro-1-...

CAS#:1123-61-1

Literature: Brisse, Francois; Atfani, Mohamed; Bergeron, Jean-Yves; Belanger-Gariepy, Francine; Armand, Michel Acta Crystallographica Section C: Crystal Structure Communications, 2000 , vol. 56, # 2 p. 190 - 192

Precursor 4
CAS#:1122-17-4 Dichloromaleic ... CAS#:593-51-1 Methylamine hyd... CAS#:74-89-5 methylamine CAS#:930-88-1 N-Methylmaleimide
DownStream 1
CAS#:113963-68-1 n-methylbis(ind...

HS Code	2925190090
Summary	2925190090 other imides and their derivatives; salts thereof VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

Dichloro-N-methylmaleimide

N-Methyldichloromaleimide

1H-Pyrrole-2,5-dione, 3,4-dichloro-1-methyl-

2,3-Dichlor-N-methylmaleinimid

3,4-Dichloro-1-methyl-1H-pyrrole-2,5-dione

2,3-Dichloro-N-methylmaleinimide

Maleimide,dichloro-N-methyl

3,4-dichloro-N-methylmaleimide

3,4-dichloro-1-methylmaleimide

N-Methyl-3,4-dichloromaleimide

2,3,5-TRINITROTOLUENE

n-Methyl-dichloromaleinimide

N-Methyl-2,3-dichloromaleimide

2,3-Dichloro-N-methylmaleimide

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Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 3,4-Dichloro-1-methyl-1H-pyrrole-2,5-dione
Price: Check
Purity: 95.0%
Delivery: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 1H-Pyrrole-2,5-dione,3,4-dichloro-1-methyl-
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Delivery: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

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3,4-Dichloro-1-methyl-1H-pyrrole-2,5-dione

Names

Chemical & Physical Properties

Toxicological Information

CHEMICAL IDENTIFICATION

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

Safety Information

Synthetic Route

Precursor & DownStream

Customs

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.