CAS 76-38-0|Ethane,2,2-dichloro-1,1-difluoro-1-methoxy-
Introduction：Basic information about CAS 76-38-0|Ethane,2,2-dichloro-1,1-difluoro-1-methoxy-, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.
| Common Name | Ethane,2,2-dichloro-1,1-difluoro-1-methoxy- | ||
|---|---|---|---|
| CAS Number | 76-38-0 | Molecular Weight | 164.96600 |
| Density | 1.4262 | Boiling Point | 103 °C |
| Molecular Formula | C3H4Cl2F2O | Melting Point | -36°C |
| MSDS | / | Flash Point | 37°C |
Names
| Name | methoxyflurane |
|---|---|
| Synonym | More Synonyms |
BiologicalActivity
| Description | Methoxyflurane is a halogenated volatile anaesthetic agent with potent analgesic effects at sub-anaesthetic doses. Methoxyflurane widely used as an open-circuit anaesthetic in small laboratory animals for several decades. Methoxyflurane has the risk of nephrotoxicity[1][2]. |
|---|---|
| Related Catalog | Research Areas >>OthersSignaling Pathways >>Others >>Others |
| In Vitro | Methoxyflurane is delivered via a hand-held inhaler[3]. |
| In Vivo | The developmental toxicity of trace, subanesthetic, and anesthetic exposure to Methoxyflurane is examined in Swiss/ICR mice. No adverse effects on reproduction or fetal development were demonstrated following exposure to trace (2 ppm) and subanesthetic (60 ppm) concentrations of Methoxyflurane for 4 hours daily on days 6 through 15 of pregnancy. Exposure to an anesthetic concentration (2000 ppm; 0.2%) for the same period resulted in decreased fetal weight, decreased ossification, and delayed renal maturation. Additionally, the incidence of minor skeletal anomalies was increased. It is concluded that gestational exposure of mice to trace of subanesthetic concentrations of Methoxyflurane does not result in reproductive loss or morphologic abnormalities in their offspring[4]. |
| References | [1]. Occupational exposure to methoxyflurane administered for procedural sedation: an observational study of 40 exposures. Br J Anaesth. 2018 Jun;120(6):1435-1437. [2]. Porter KM, et al. The role of inhaled methoxyflurane in acute pain management. Open Access Emerg Med. 2018 Oct 18;10:149-164. [3]. Methoxyflurane nephrotoxicity. JAMA. 1971 Aug 16;217(7):958-9. [4]. Wharton RS, et al., Developmental toxicity of methoxyflurane in mice. Anesth Analg. 1980 Jun;59(6):421-5. |
Chemical & Physical Properties
| Density | 1.4262 |
|---|---|
| Boiling Point | 103 °C |
| Melting Point | -36°C |
| Molecular Formula | C3H4Cl2F2O |
| Molecular Weight | 164.96600 |
| Flash Point | 37°C |
| Exact Mass | 163.96100 |
| PSA | 9.23000 |
| LogP | 2.02930 |
| Index of Refraction | 1.386 |
| InChIKey | RFKMCNOHBTXSMU-UHFFFAOYSA-N |
| SMILES | COC(F)(F)C(Cl)Cl |
| Storage condition | -70°C |
| Stability | Stability |
Toxicological Information
CHEMICAL IDENTIFICATION |
ACUTE TOXICITY DATA - TYPE OF TEST :
- Standard Draize test
- ROUTE OF EXPOSURE :
- Administration into the eye
- SPECIES OBSERVED :
- Rodent - rabbit
- TYPE OF TEST :
- TCLo - Lowest published toxic concentration
- ROUTE OF EXPOSURE :
- Inhalation
- SPECIES OBSERVED :
- Human
- DOSE/DURATION :
- 3500 ppm/1H
- TOXIC EFFECTS :
- Kidney, Ureter, Bladder - renal function tests depressed
- TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Oral
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- 3600 mg/kg
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- TYPE OF TEST :
- LC50 - Lethal concentration, 50 percent kill
- ROUTE OF EXPOSURE :
- Inhalation
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- 33500 mg/m3/4H
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- TYPE OF TEST :
- LC50 - Lethal concentration, 50 percent kill
- ROUTE OF EXPOSURE :
- Inhalation
- SPECIES OBSERVED :
- Rodent - mouse
- DOSE/DURATION :
- 21500 mg/m3
- TOXIC EFFECTS :
- Behavioral - general anesthetic Behavioral - somnolence (general depressed activity) Behavioral - excitement
- TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Intravenous
- SPECIES OBSERVED :
- Rodent - mouse
- DOSE/DURATION :
- 150 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 :
- Mammal - species unspecified
- DOSE/DURATION :
- 3600 mg/kg
- TOXIC EFFECTS :
- Behavioral - antipsychotic
- TYPE OF TEST :
- LC50 - Lethal concentration, 50 percent kill
- ROUTE OF EXPOSURE :
- Inhalation
- SPECIES OBSERVED :
- Mammal - species unspecified
- DOSE/DURATION :
- 34 gm/m3
- TOXIC EFFECTS :
- Behavioral - antipsychotic
- TYPE OF TEST :
- TCLo - Lowest published toxic concentration
- ROUTE OF EXPOSURE :
- Inhalation
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- 50 ppm/24H/14W-C
- TOXIC EFFECTS :
- Liver - changes in liver weight Kidney, Ureter, Bladder - other changes in urine composition Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - hepatic microsomal mixed oxidase (dealkylation, hydroxylation, etc.)
- TYPE OF TEST :
- TCLo - Lowest published toxic concentration
- ROUTE OF EXPOSURE :
- Inhalation
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- 48600 mg/m3/4H/30D-I
- TOXIC EFFECTS :
- Liver - other changes
- TYPE OF TEST :
- TCLo - Lowest published toxic concentration
- ROUTE OF EXPOSURE :
- Inhalation
- DOSE :
- 100 ppm/8H
- SEX/DURATION :
- female 1-21 day(s) after conception
- TOXIC EFFECTS :
- Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus)
- TYPE OF TEST :
- TCLo - Lowest published toxic concentration
- ROUTE OF EXPOSURE :
- Inhalation
- DOSE :
- 400 ppm/8H
- SEX/DURATION :
- female 1-21 day(s) after conception
- TOXIC EFFECTS :
- Reproductive - Specific Developmental Abnormalities - musculoskeletal system
- TYPE OF TEST :
- TCLo - Lowest published toxic concentration
- ROUTE OF EXPOSURE :
- Inhalation
- DOSE :
- 2 ppm/4H
- SEX/DURATION :
- female 6-15 day(s) after conception
- TOXIC EFFECTS :
- Reproductive - Specific Developmental Abnormalities - urogenital system
- TYPE OF TEST :
- TCLo - Lowest published toxic concentration
- ROUTE OF EXPOSURE :
- Inhalation
- DOSE :
- 2000 ppm/4H
- SEX/DURATION :
- female 6-15 day(s) after conception
- TOXIC EFFECTS :
- Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus) Reproductive - Specific Developmental Abnormalities - musculoskeletal system
- TYPE OF TEST :
- Mutation test systems - not otherwise specified
MUTATION DATA - TEST SYSTEM :
- Bird - chicken
- REFERENCE :
- ENVRAL Environmental Research. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1967- Volume(issue)/page/year: 12,366,1976 *** REVIEWS *** IARC Cancer Review:Animal Inadequate Evidence IMSUDL IARC Monographs, Supplement. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) No.1- 1979- Volume(issue)/page/year: 7,93,1987 TOXICOLOGY REVIEW ARPTDI Annual Review of Pharmacology and Toxicology. (Annual Reviews, Inc., POB 10139, Palo Alto, CA 94303) V.16- 1976- Volume(issue)/page/year: 16,67,1976 TOXICOLOGY REVIEW KDYIA5 Kidney International. (Springer-Verlag New York, Inc., Service Center, 44 Hartz Way, Secaucus Secaucus, NJ 07094) V.1- 1972- Volume(issue)/page/year: 10,82,1976 TOXICOLOGY REVIEW CANJAE Canadian Anaesthetists' Society Journal. (Toronto, Ont., Canada) V.1-33, 1954-86. Volume(issue)/page/year: 19,152,1972 TOXICOLOGY REVIEW ARMCAH Annual Review of Medicine. (Annual Reviews, Inc., POB 10139, Palo Alto, CA 94303) V.1- 1950- Volume(issue)/page/year: 25,411,1974 TOXICOLOGY REVIEW AACRAT Anesthesia and Analgesia (New York). (Elsevier Science Pub. Co., Inc., 52 Vanderbilt Ave., New York, NY 10017) V.36- 1957- Volume(issue)/page/year: 57,328,1978 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-DENMARK:TWA 2 ppm (14 mg/m3) JAN 1993 OEL-RUSSIA:STEL 200 mg/m3 JAN 1993 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH RECOMMENDED EXPOSURE LEVEL (REL) : NIOSH REL TO METHOXYFLURANE-air:CL 2 ppm REFERENCE : NIOSH* National Institute for Occupational Safety and Health, U.S. Dept. of Health, Education, and Welfare, Reports and Memoranda. Volume(issue)/page/year: DHHS #92-100,1992 NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 82904 No. of Facilities: 627 (estimated) No. of Industries: 2 No. of Occupations: 6 No. of Employees: 8095 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 82904 No. of Facilities: 2120 (estimated) No. of Industries: 2 No. of Occupations: 14 No. of Employees: 32772 (estimated) No. of Female Employees: 18210 (estimated)
- TEST SYSTEM :
- Bird - chicken
- REFERENCE :
- ENVRAL Environmental Research. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1967- Volume(issue)/page/year: 12,366,1976 *** REVIEWS *** IARC Cancer Review:Animal Inadequate Evidence IMSUDL IARC Monographs, Supplement. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) No.1- 1979- Volume(issue)/page/year: 7,93,1987 TOXICOLOGY REVIEW ARPTDI Annual Review of Pharmacology and Toxicology. (Annual Reviews, Inc., POB 10139, Palo Alto, CA 94303) V.16- 1976- Volume(issue)/page/year: 16,67,1976 TOXICOLOGY REVIEW KDYIA5 Kidney International. (Springer-Verlag New York, Inc., Service Center, 44 Hartz Way, Secaucus Secaucus, NJ 07094) V.1- 1972- Volume(issue)/page/year: 10,82,1976 TOXICOLOGY REVIEW CANJAE Canadian Anaesthetists' Society Journal. (Toronto, Ont., Canada) V.1-33, 1954-86. Volume(issue)/page/year: 19,152,1972 TOXICOLOGY REVIEW ARMCAH Annual Review of Medicine. (Annual Reviews, Inc., POB 10139, Palo Alto, CA 94303) V.1- 1950- Volume(issue)/page/year: 25,411,1974 TOXICOLOGY REVIEW AACRAT Anesthesia and Analgesia (New York). (Elsevier Science Pub. Co., Inc., 52 Vanderbilt Ave., New York, NY 10017) V.36- 1957- Volume(issue)/page/year: 57,328,1978 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-DENMARK:TWA 2 ppm (14 mg/m3) JAN 1993 OEL-RUSSIA:STEL 200 mg/m3 JAN 1993 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH RECOMMENDED EXPOSURE LEVEL (REL) : NIOSH REL TO METHOXYFLURANE-air:CL 2 ppm REFERENCE : NIOSH* National Institute for Occupational Safety and Health, U.S. Dept. of Health, Education, and Welfare, Reports and Memoranda. Volume(issue)/page/year: DHHS #92-100,1992 NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 82904 No. of Facilities: 627 (estimated) No. of Industries: 2 No. of Occupations: 6 No. of Employees: 8095 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 82904 No. of Facilities: 2120 (estimated) No. of Industries: 2 No. of Occupations: 14 No. of Employees: 32772 (estimated) No. of Female Employees: 18210 (estimated)
Safety Information
| Hazard Codes | Xi |
|---|---|
| Risk Phrases | R10 |
| Safety Phrases | S23-S24/25 |
| RIDADR | 3271 |
| RTECS | KN7820000 |
| Packaging Group | III |
| Hazard Class | 3 |
Synonyms
| MFCD00040144 |
| 2,2-dichloro-1,1-difluoro-1-methoxyethane |
| EINECS 200-956-0 |
| 2,2-Dichloro-1,1-Difluoroethyl Methyl Ether |
