Methylthiophosphonic acid O,O-dimethyl ester

Modify Date: 2025-09-18 01:37:56

Methylthiophosphonic acid O,O-dimethyl ester Structure
Methylthiophosphonic acid O,O-dimethyl ester structure
 Common Name Methylthiophosphonic acid O,O-dimethyl ester
CAS Number 681-06-1 Molecular Weight 140.14100
Density 1.141g/cm3 Boiling Point 125.8ºC at 760 mmHg
Molecular Formula C3H9O2PS Melting Point N/A
MSDS N/A Flash Point 29.9ºC

 Names

Name dimethoxy-methyl-sulfanylidene-λ5-phosphane
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.141g/cm3
Boiling Point 125.8ºC at 760 mmHg
Molecular Formula C3H9O2PS
Molecular Weight 140.14100
Flash Point 29.9ºC
Exact Mass 140.00600
PSA 60.36000
LogP 1.86910
Index of Refraction 1.459

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
TB1100800
CHEMICAL NAME :
Phosphonothioic acid, methyl-, O,O-dimethyl ester
CAS REGISTRY NUMBER :
681-06-1
LAST UPDATED :
199706
DATA ITEMS CITED :
1
MOLECULAR FORMULA :
C3-H9-O2-P-S
MOLECULAR WEIGHT :
140.15

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
>300 mg/kg
TOXIC EFFECTS :
Gastrointestinal - hypermotility, diarrhea Kidney, Ureter, Bladder - urine volume increased Blood - other changes
REFERENCE :
JTEHD6 Journal of Toxicology and Environmental Health. (Hemisphere Pub., 1025 Vermont Ave., NW, Washington, DC 20005) V.1- 1975/76- Volume(issue)/page/year: 8,619,1981

 Synthetic Route

Methanol structure

Methanol

CAS#:67-56-1

methylphosphonothioic dichloride structure

methylphosphono...

CAS#:676-98-2

~%

Methylthiophosphonic acid O,O-dimethyl ester Structure

Methylthiophosp...

CAS#:681-06-1

Literature: Hoffmann et al. Journal of the American Chemical Society, 1958 , vol. 80, p. 3945,3946,3947
Sodium Methylate structure

Sodium Methylate

CAS#:124-41-4

methylphosphonothioic dichloride structure

methylphosphono...

CAS#:676-98-2

~%

Methylthiophosphonic acid O,O-dimethyl ester Structure

Methylthiophosp...

CAS#:681-06-1

Literature: Hoffmann et al. Journal of the American Chemical Society, 1958 , vol. 80, p. 3945,3946,3947

 Synonyms

Methyl-thiophosphonsaeure-O,O'-dimethylester
O,O-Dimethyl methylphosphonothioate
methyl-phosphonothioic acid O,O'-dimethyl ester
Phosphonothioic acid,methyl-,O,O-dimethyl ester
dimethoxy-methyl-sulfanylidene-phosphorane
Methan-thiophosphonsaeure-O,O'-dimethylester
methyl thiophosphonate de methyle
methyl-thiophosphonic acid O,O'-dimethyl ester
dimethoxy-methyl-sulfanylidene
Dimethyl methylphosphonothionate
O,O-Dimethyl methanephosphonothioate
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Chemsrc provides CAS#:681-06-1 MSDS, density, melting point, boiling point, structure, etc. Its name is Methylthiophosphonic acid O,O-dimethyl ester>> amp version: Methylthiophosphonic acid O,O-dimethyl ester

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