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12550-82-2

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Basic Information
CAS No.: 12550-82-2
Name: mercury hydrogen 2-amino-3-sulfidopropanoate (1:2:2)
Molecular Structure:
Molecular Structure of 12550-82-2 (mercury hydrogen 2-amino-3-sulfidopropanoate (1:2:2))
Formula: C6H10 Hg N2 O4 S2 . 2 H
Molecular Weight: 440.91
Synonyms: Mercurate(2-),bis[L-cysteinato(2-)-O,S]-, dihydrogen, (T-4)-; Mercury, bis(L-cysteinato)-(7CI); L-Cysteine, mercury complex; Bis(cysteinato)mercury
Density: g/cm3
Boiling Point: 293.9°Cat760mmHg
Flash Point: 131.5°C
Hazard Symbols: Moderately toxic by ingestion. TWA 0.01. STEL 0.03 mg/m3 (skin)
Safety: A poison by intravenous route. Moderately toxic by ingestion. When heated to decomposition it emits toxic vapors of NOx, Hg, and SOx.
PSA: 168.27000
LogP: -1.66330
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Chemistry

IUPAC Name: 2-amino-3-sulfidopropanoate; hydron; mercury(2+) 
Synonyms of Bis(L-cysteinato)mercury (CAS NO.12550-82-2): Cysteine, L-, mercury complex ; Mercurate(2-), bis(L-cysteinato(2-)-O,S)-, dihydrogen, (T-4)- (9CI) ; Mercury(II), bis(L-cysteinato)-
CAS NO: 12550-82-2 
Molecular Formula of Bis(L-cysteinato)mercury (CAS NO.12550-82-2): C6H12HgN2O4S2
Molecular Weight: 440.8905 
H bond acceptors: 3
H bond donors: 3
Freely Rotating Bonds: 4
Polar Surface Area: 79.34 Å2
Flash Point of Bis(L-cysteinato)mercury (CAS NO.12550-82-2): 131.5 °C
Enthalpy of Vaporization: 58.69 kJ/mol
Boiling Point: 293.9 °C at 760 mmHg
Vapour Pressure: 0.000411 mmHg at 25°C
Molecular Structure:

Uses

 Bis(L-cysteinato)mercury (CAS NO.12550-82-2 is used as pesticide.

Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 intravenous 8400ug/kg (8.4mg/kg)   Journal of Environmental Pathology and Toxicology. Vol. 2(6), Pg. 1529, 1979.
mouse LD50 oral > 600mg/kg (600mg/kg)   Journal of Environmental Pathology and Toxicology. Vol. 2(6), Pg. 1529, 1979.

Safety Profile

A poison by intravenous route. Moderately toxic by ingestion. When heated to decomposition it emits toxic vapors of NOx, Hg, and SOx.

Standards and Recommendations

ACGIH TLV: TWA 0.01. STEL 0.03 mg/m3 (skin)
NIOSH REL: (MERCURY, ORGANO) TWA 0.01 mg/m3. STEL 0.03 mg/m3 (Sk)