Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 3,4-Dichloro-1-methyl-1H-pyrrole-2,5-dione
Price: Check
Purity: 95.0%
Stocking Period: 10 Day
Contact: Yang
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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%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

1123-61-1

1123-61-1 structure

Name: 3,4-Dichloro-1-methyl-1H-pyrrole-2,5-dione
Chemical Name: 3,4-dichloro-1-methylpyrrole-2,5-dione
CAS Number: 1123-61-1
Molecular Formula: C₅H₃Cl₂NO₂
Molecular Weight: 179.989
Create Date: 2018-12-03 06:54:06
Modify Date: 2025-08-21 14:06:53

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

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

1122-17-4

593-51-1

~77%

1123-61-1

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

1122-17-4

1123-61-1

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

1122-17-4

74-89-5

~55%

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

930-88-1

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
1122-17-4 593-51-1 74-89-5 930-88-1
DownStream 1
113963-68-1

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%

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