Diethyl methylenemalonate

Modify Date: 2025-08-24 14:35:15

Diethyl methylenemalonate Structure
Diethyl methylenemalonate structure
 Common Name Diethyl methylenemalonate
CAS Number 3377-20-6 Molecular Weight 172.178
Density 1.1±0.1 g/cm3 Boiling Point 174.4±13.0 °C at 760 mmHg
Molecular Formula C8H12O4 Melting Point N/A
MSDS N/A Flash Point 73.0±18.2 °C

 Names

Name diethyl 2-methylidenepropanedioate
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.1±0.1 g/cm3
Boiling Point 174.4±13.0 °C at 760 mmHg
Molecular Formula C8H12O4
Molecular Weight 172.178
Flash Point 73.0±18.2 °C
Exact Mass 172.073563
PSA 52.60000
LogP 1.71
Vapour Pressure 1.2±0.3 mmHg at 25°C
Index of Refraction 1.433
InChIKey BQHDXNZNSPVVKB-UHFFFAOYSA-N
SMILES C=C(C(=O)OCC)C(=O)OCC

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
TY1848000
CHEMICAL NAME :
Propanedioic acid, methylene-, diethyl ester
CAS REGISTRY NUMBER :
3377-20-6
BEILSTEIN REFERENCE NO. :
1723773
LAST UPDATED :
199712
DATA ITEMS CITED :
1
MOLECULAR FORMULA :
C8-H12-O4
MOLECULAR WEIGHT :
172.20

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD - Lethal dose
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
>500 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
CBCCT* "Summary Tables of Biological Tests," National Research Council Chemical-Biological Coordination Center. (National Academy of Science Library, 2101 Constitution Ave., NW, Washington, DC 20418) Volume(issue)/page/year: 6,147,1954

 Safety Information

HS Code 2917190090

 Customs

HS Code 2917190090
Summary 2917190090 acyclic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

 Synonyms

2-methylene-malonic acid diethyl ester
Diethyl ethylene-1,1-dicarboxylate
Propanedioic acid,2-Methylene-,1,3-diethyl ester
diethylethoxymethylene malonate
Diethyl methylenemalonate
methylidenemalonic acid diethyl ester
Propanedioic acid, 2-methylene-, diethyl ester
diethyl methylidenemalonate
Diethyl 2-methylenemalonate
Methylenemalonic acid diethyl ester
Methylenepropanedioic acid diethyl ester
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