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12558-92-8

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Basic Information
CAS No.: 12558-92-8
Name: Mercurate(2-),[[N,N'-1,2-ethanediylbis[N-[(carboxy-kO)methyl]glycinato-kN,kO]](4-)]-, hydrogen (1:2), (OC-6-21)-
Molecular Structure:
Molecular Structure of 12558-92-8 (Mercurate(2-),[[N,N'-1,2-ethanediylbis[N-[(carboxy-kO)methyl]glycinato-kN,kO]](4-)]-, hydrogen (1:2), (OC-6-21)-)
Formula: C10H12 Hg N2 O8 . 2 H
Molecular Weight: 490.8
Synonyms: Hydrogen[(ethylenedinitrilo)tetraacetato]mercurate(II) (7CI);Mercurate(2-),[[N,N'-1,2-ethanediylbis[N-(carboxymethyl)glycinato]](4-)-N,N',O,O',ON,ON']-,dihydrogen, (OC-6-21)-;Mercurate(2-), [[N,N'-1,2-ethanediylbis[N-[(carboxy-kO)methyl]glycinato-kN,kO]](4-)]-, dihydrogen, (OC-6-21)- (9CI);MercuricEDTA;Mercuric versenate;Mercury EDTA;
Hazard Symbols: 3
Safety: Poison by ingestion, intravenous and intraperitoneal routes. When heated to decomposition it emits very toxic fumes of Hg and NOx. See also MERCURY COMPOUNDS, INORGANIC; MERCURY COMPOUNDS, ORGANIC.
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Chemistry

IUPAC Name: 2-[Carboxymethyl-[2-[carboxymethyl-(2-oxido-2-oxoethyl)amino]ethyl]amino]acetate ; Mercury(2+) 
Following is the structure of Mercury(II) EDTA complex (CAS NO.12558-92-8):
              
Empirical Formula: C10H14HgN2O8
Molecular Weight: 490.8168 g/mol 
Flash Point: 325.2 °C
Enthalpy of Vaporization: 99.5 kJ/mol
Boiling Point: 614.2 °C at 760 mmHg
Vapour Pressure of Mercury(II) EDTA complex (CAS NO.12558-92-8): 1.15E-16 mmHg at 25 °C
Canonical SMILES: C(CN(CC(=O)O)CC(=O)[O-])N(CC(=O)O)CC(=O)[O-].[Hg+2]
InChI: InChI=1S/C10H16N2O8.Hg/c13-7(14)3-11(4-8(15)16)1-2-12(5-9(17)18)6-10(19)20;/h1-6H2,(H,13,14)(H,15,16)(H,17,18)(H,19,20);/q;+2/p-2
InChIKey: HLPPLCMMZDXCQN-UHFFFAOYSA-L

Toxicity Data With Reference

1.    

orl-mus LD50:268 mg/kg

     JEPTDQ    Journal of Environmental Pathology and Toxicology. 2 (6)(1979),1529.
2.    

ipr-mus LD50:2700 µg(Hg)/kg

     PABIAQ    Pathologie et Biologie. 11 (1963),853.
3.    

ivn-mus LD50:9500 µg/kg

     JEPTDQ    Journal of Environmental Pathology and Toxicology. 2 (6)(1979),1529.

Consensus Reports

 Mercury and its compounds are on the Community Right-To-Know List.

Safety Profile

Poison by ingestion, intravenous and intraperitoneal routes. When heated to decomposition, Mercury(II) EDTA complex  (CAS NO.12558-92-8) emits very toxic fumes of Hg and NOx. See also MERCURY COMPOUNDS, INORGANIC; MERCURY COMPOUNDS, ORGANIC.

Standards and Recommendations

OSHA PEL: CL 0.1 mg(Hg)/m3 (skin)
ACGIH TLV: TWA 0.1 mg(Hg)/m3 (skin); BEI: 35 µg/g creatinine total inorganic mercury in urine preshift; 15 µg/g creatinine total inorganic mercury in blood at end of shift at end of workweek.
DFG MAK: Confirmed Animal Carcinogen with Unknown Relevance to Humans
NIOSH REL: (Mercury, Organo) TWA 0.01 mg/m3; STEL 0.03 mg/m3 (skin)

Specification

 Mercury(II) EDTA complex , its cas register number is 12558-92-8. It also can be called  (Dihydrogen(ethylenedinitrilo)tetraacetato)mercury ; (Ethylenedinitrilo)tetraacetic acid mercury complex ; Hydrogen ((ethylenedinitrilo)tetraacetato)mercurate(II) ; and Acetic acid, (ethylenedinitrilo)tetra-, mercury(II) complex .