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Basic Information
CAS No.: 3476-50-4
Name: trimethylcolchicinic acid methyl ether
Article Data: 2
Molecular Structure:
Molecular Structure of 3476-50-4 (trimethylcolchicinic acid methyl ether)
Formula: C20H23 N O5
Molecular Weight: 357.406
Synonyms: Benzo[a]heptalen-9(5H)-one,7-amino-6,7-dihydro-1,2,3,10-tetramethoxy-, (S)-; Colchicine, N-deacetyl-(7CI,8CI); Colchicine, deacetyl- (6CI); (-)-7-Deacetylcolchicine;(-)-Deacetylcolchicine; Deacetylcolchicine; Desacetylcolchicine;N-Deacetylcolchicine; N-Desacetylcolchicine; NSC 201400
Density: 1.25g/cm3
Boiling Point: 626.6°Cat760mmHg
Flash Point: 287°C
Safety: Poison by intraperitoneal and intramuscular routes. Mutation data reported. When heated to decomposition it emits toxic fumes of NOx. See also COLCHICINE and ETHERS.
PSA: 80.01000
LogP: 3.39450
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Chemistry

IUPAC Name: (7S)-7-Amino-1,2,3,10-tetramethoxy-6,7-dihydro-5H-benzo[a]heptalen-9-one 
Molecular Formula: C20H23NO5
Molecular Weight: 357.44g/mol
Density: 1.25g/cm3
Boiling Point: 626.6°C at 760mmHg
Flash Point: 287°C 
Freely Rotating Bonds: 5
Polar Surface Area: 57.23 Å2
Index of Refraction: 1.597
Molar Refractivity: 97.19 cm3
Molar Volume: 284.9 cm3
Polarizability: 38.53 ×10-24 cm3
Surface Tension: 51.7 dyne/cm
Enthalpy of Vaporization: 92.74 kJ/mol
Vapour Pressure: 1.29E-15 mmHg at 25°C
The Cas Register Number  of Trimethylcolchicinic acid methyl ether is 3476-50-4.The chemical synonyms of Trimethylcolchicinic acid methyl ether (CAS NO.3476-50-4) are (7S)-7-Amino-1,2,3,10-tetramethoxy-6,7-dihydrobenzo[a]heptalen-9(5H)-one ; Benzo[a]heptalen-9(5H)-one, 7-amino-6,7-dihydro-1,2,3,10-tetramethoxy-, (7S)- ; (S)-7-Amino-6,7-dihydro-1,2,3,10-tetramethoxybenzo(a)heptalen-9(5H)-one ; 7-Amino-1,2,3,10-tetramethoxy-6,7-dihydro-5H-benzo[a]heptalen-9-one ; Benzo(a)heptalen-9(5H)-one, 7-amino-6,7-dihydro-1,2,3,10-tetramethoxy-, (S)- (9CI) ; Colchicine analog ; Colchicine, N-deacetyl- ; Colchinic acid trimethyl ; Deacetylcolchicine ; N-Deacetylcolchicine ; Tmca methyl ether ; Trimethylcolchicinic acid methyl ether .The molecular structure of Trimethylcolchicinic acid methyl ether (CAS NO.3476-50-4) is.

Uses

  Trimethylcolchicinic acid methyl ether (CAS NO.3476-50-4) is used as organic intermediate.

Toxicity Data With Reference

1.    

oms-mus-par 46 mg/kg

     CANCAR    Cancer. 3 (1950),134.
2.    

spm-mus-par 46 mg/kg

     CANCAR    Cancer. 3 (1950),134.
3.    

ipr-mus LD50:46 mg/kg

     MDREP*    U.S. Army, Chemical Corps Medical Division Reports .(Army Chemical Center, MD.: )1949,204.
4.    

ims-mus LD50:49 mg/kg

     JMCMAR    Journal of Medicinal Chemistry. 24 (1981),257.

Safety Profile

Poison by intraperitoneal and intramuscular routes. Mutation data reported. When heated to decomposition it emits toxic fumes of NOx. See also COLCHICINE and ETHERS.
Safety Statements: 22-24/25 
S22: Do not breathe dust. 
S24/25: Avoid contact with skin and eyes.
WGK Germany: 3