756-79-6

756-79-6 structure
756-79-6 structure

Name Dimethyl Methylphosphonate
Synonyms MFCD00008349
Dimethyl methylphosphonate
EINECS 212-052-3
Methanephosphonic acid, dimethyl ester
Phosphonic acid, P-methyl-, dimethyl ester
[methoxy(methyl)phosphoryl]oxymethane
DMMP
Density 1.145
Boiling Point 181 ºC
Molecular Formula C3H9O3P
Molecular Weight 124.076
Flash Point 156 ºF
Exact Mass 124.028931
PSA 45.34000
LogP -0.78
Vapour Pressure 1.2±0.3 mmHg at 25°C
Index of Refraction 1.413
Stability Stability Combustible. Incompatible with strong oxidizing agents, strong bases. May soften some rubbers or plastics. Hydrolyzes slowly in contact with water.
Water Solubility >=10 g/100 mL at 21 ºC

CHEMICAL IDENTIFICATION

RTECS NUMBER :
SZ9120000
CHEMICAL NAME :
Phosphonic acid, methyl-, dimethyl ester
CAS REGISTRY NUMBER :
756-79-6
BEILSTEIN REFERENCE NO. :
0878263
LAST UPDATED :
199710
DATA ITEMS CITED :
30
MOLECULAR FORMULA :
C3-H9-O3-P
MOLECULAR WEIGHT :
124.09
WISWESSER LINE NOTATION :
1OPO&1&O1

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 :
8210 mg/kg
TOXIC EFFECTS :
Behavioral - muscle weakness
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
1050 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
>6810 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
912 mg/kg
TOXIC EFFECTS :
Behavioral - muscle weakness Lungs, Thorax, or Respiration - respiratory depression Lungs, Thorax, or Respiration - other changes
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Bird - chicken
DOSE/DURATION :
3998 mg/kg
TOXIC EFFECTS :
Behavioral - somnolence (general depressed activity) Behavioral - ataxia
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
75 gm/kg/15D-C
TOXIC EFFECTS :
Related to Chronic Data - death
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
130 gm/kg/13W-I
TOXIC EFFECTS :
Liver - changes in liver weight Related to Chronic Data - death
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
150 gm/kg/15D-C
TOXIC EFFECTS :
Gastrointestinal - gastritis Gastrointestinal - other changes Related to Chronic Data - death
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
260 gm/kg/13W-I
TOXIC EFFECTS :
Related to Chronic Data - death
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
515 gm/kg/2Y-C
TOXIC EFFECTS :
Tumorigenic - Carcinogenic by RTECS criteria Kidney, Ureter, Bladder - Kidney tumors
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
63 gm/kg
SEX/DURATION :
male 63 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Paternal Effects - spermatogenesis (incl. genetic material, sperm morphology, motility, and count) Reproductive - Fertility - male fertility index (e.g. # males impregnating females per # males exposed to fertile nonpregnant females)
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
126 gm/kg
SEX/DURATION :
male 63 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Paternal Effects - testes, epididymis, sperm duct Reproductive - Paternal Effects - prostate, seminal vesicle, Cowper's gland, accessory glands
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
15750 mg/kg
SEX/DURATION :
male 63 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Fertility - post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants)
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
61250 mg/kg
SEX/DURATION :
male 7 week(s) pre-mating
TOXIC EFFECTS :
Reproductive - Paternal Effects - spermatogenesis (incl. genetic material, sperm morphology, motility, and count) Reproductive - Paternal Effects - testes, epididymis, sperm duct
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
10 gm/kg
SEX/DURATION :
male 20 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Fertility - post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants)
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
33 gm/kg
SEX/DURATION :
female 7-14 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Newborn - growth statistics (e.g.%, reduced weight gain)
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
33400 mg/kg
SEX/DURATION :
female 6-13 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Newborn - growth statistics (e.g.%, reduced weight gain)
TYPE OF TEST :
Specific locus test
TYPE OF TEST :
Sperm Morphology
TYPE OF TEST :
Dominant lethal test

MUTATION DATA

TYPE OF TEST :
Sister chromatid exchange
TEST SYSTEM :
Rodent - hamster Ovary
DOSE/DURATION :
11 gm/L
REFERENCE :
MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 189,15,1987 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - A1091 No. of Facilities: 35 (estimated) No. of Industries: 2 No. of Occupations: 4 No. of Employees: 204 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - A1091 No. of Facilities: 53 (estimated) No. of Industries: 5 No. of Occupations: 8 No. of Employees: 2134 (estimated) No. of Female Employees: 763 (estimated)
Symbol GHS07 GHS08
GHS07, GHS08
Signal Word Danger
Hazard Statements H319-H340-H361f
Precautionary Statements P201-P305 + P351 + P338-P308 + P313
Personal Protective Equipment Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
Hazard Codes T:Toxic;
Risk Phrases R36;R46
Safety Phrases S53-S26-S45
RIDADR 2810
WGK Germany 2
RTECS SZ9120000