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Basic Information
CAS No.: 3693-53-6
Name: METHYLENE DIURETHANE
Molecular Structure:
Molecular Structure of 3693-53-6 (METHYLENE DIURETHANE)
Formula: C7H14 N2 O4
Molecular Weight: 190.199
Synonyms: Carbamicacid, methylenebis-, diethyl ester (9CI); Carbamic acid, methylenedi-, diethylester (6CI,7CI,8CI); Bis(N-ethoxycarbonylamino)methane; Diethylmethylenedicarbamate; Methylene bisurethane; Methylenediurethane; NSC 20524
Density: 1.127g/cm3
Melting Point: 130-131°C
Boiling Point: 326.2°Cat760mmHg
Flash Point: 151.1°C
Hazard Symbols: R40:Possible risks of irreversible effects.;
Risk Codes: 40
Safety: Questionable carcinogen with experimental tumorigenic data. When heated to decomposition it emits toxic fumes of NOx. See also CARBAMATES.
PSA: 76.66000
LogP: 1.21790
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Chemistry

IUPAC Name: Ethyl N-[(ethoxycarbonylamino)methyl]carbamate
Synonyms of Methylene diurethan (CAS NO.3693-53-6): Bis(N-ethoxycarbonylamino)methane ; Diethyl methylenebiscarbamate ; Diethyl methylenedicarbamate ; Methylene bisurethane ; Methylene diurethane ; N,N-Methylene-bis(ethyl carbamate) ; Carbamic acid, methylenebis-, diethyl ester (9CI) ; Diethyl methylenedicarbamate
CAS NO: 3693-53-6
Molecular Formula: C7H14N2O4
Molecular Weight : 190.1971
Molecular Structure:
EINECS: 223-011-4
H bond acceptors: 6
H bond donors: 2
Freely Rotating Bonds: 6
Polar Surface Area: 59.08Å2
Index of Refraction: 1.448
Molar Refractivity: 45.21 cm3
Molar Volume: 168.6 cm3
Surface Tension: 37 dyne/cm
Density: 1.127 g/cm3
Flash Point: 151.1 °C
Enthalpy of Vaporization: 56.84 kJ/mol
Boiling Point: 326.2 °C at 760 mmHg
Vapour Pressure: 0.000219 mmHg at 25°C
Melting Point: 130-131°C

Toxicity Data With Reference

1.    

ipr-mus TDLo:6500 mg/kg/13W-I:ETA

     JNCIAM    Journal of the National Cancer Institute. 9 (1948),35.

Safety Profile

Risk Statements: 40
R40: Limited evidence of a carcinogenic effect.
Safety Statements : 22-36/37
S22: Do not breathe dust. 
S36/37: When Methylene diurethan (CAS NO.3693-53-6) is used,wear suitable protective clothing and gloves.
RTECS: FC2200000

Questionable carcinogen with experimental tumorigenic data. When heated to decomposition it emits toxic fumes of NOx. See also CARBAMATES.