52-68-6

Name Chlorophos
CAS 52-68-6
EINECS(EC#) 200-149-3
Molecular Formula C4H8Cl3O4P
MDL Number MFCD00055272
Molecular Weight 257.44
MOL File 52-68-6.mol

Chemical Properties

Appearance Trichlorfon is a white to pale yellow crystalline solid.
Melting point  77-81 °C
Boiling point  100°C
density  1.73
vapor pressure  2.1×10-4Pa (20 °C)
refractive index  1.3439
storage temp.  2-8°C
solubility  Freely soluble in water, very soluble in methylene chloride, freely soluble in acetone and in ethanol (96 per cent).
form  solid
pka 6 (est.)
color  Crystals
Water Solubility  Slightly soluble. 1-5 g/100 mL at 21 ºC
Merck  13,9696
BRN  1709434
Henry's Law Constant 5.5×101 mol/(m3Pa) at 25℃, Chao et al. (2017)
Exposure limits PC-TWA: 0.5 mg/m3; PC-STEL: 1 mg/m3
Stability: Light Sensitive
Major Application agriculture
environmental
InChI 1S/C4H8Cl3O4P/c1-10-12(9,11-2)3(8)4(5,6)7/h3,8H,1-2H3
InChIKey NFACJZMKEDPNKN-UHFFFAOYSA-N
SMILES COP(=O)(OC)C(O)C(Cl)(Cl)Cl
IARC 3 (Vol. 30, Sup 7) 1987
NIST Chemistry Reference Metrifonate(52-68-6)
EPA Substance Registry System Phosphonic acid, (2,2,2-trichloro-1-hydroxyethyl)-, dimethyl ester(52-68-6)

Safety Data

Symbol(GHS)  Exclamation Mark (GHS07)Health Hazard (GHS08)Environment (GHS09)
GHS07,GHS08,GHS09
Signal word  Danger
Hazard statements  H302+H312-H317-H334-H410
Precautionary statements  P273-P280-P301+P312+P330-P302+P352+P312
Hazard Codes  Xn,N
Risk Statements 
Safety Statements 
RIDADR  UN 3077 9/PG 3
WGK Germany  3
RTECS  TA0700000
HazardClass  6.1(b)
PackingGroup  III
HS Code  29319090
Storage Class 11 - Combustible Solids
Hazard Classifications Acute Tox. 4 Dermal
Acute Tox. 4 Oral
Aquatic Acute 1
Aquatic Chronic 1
Resp. Sens. 1
Skin Sens. 1
Safety Profile
Poison by ingestion, inhalation, inti-aperitoneal, subcutaneous, intravenous, and intramuscular routes. Moderately toxic by skin contact. Human systemic effects: true cholinesterase. Experimental teratogenic and reproductive effects. Questionable carcinogen with experimental carcinogenic and tumorigenic data. Human mutation data reported. An eye irritant. When heated to decomposition it emits very toxic fumes of Cland POx.
Hazardous Substances Data 52-68-6(Hazardous Substances Data)
Toxicity
LD50 in male, female rats (mg/kg): 630, 560 orally (Gaines)

Raw materials And Preparation Products

Hazard Information

Material Safety Data Sheet(MSDS)

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