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532-03-6

532-03-6 structure
532-03-6 structure
  • Name: methocarbamol
  • Chemical Name: Methocarbamol
  • CAS Number: 532-03-6
  • Molecular Formula: C11H15NO5
  • Molecular Weight: 241.240
  • Catalog: API Antipyretic analgesics Non-steroidal anti-inflammatory drugs
  • Create Date: 2018-03-10 08:00:00
  • Modify Date: 2025-08-22 00:49:11
  • Methocarbamol is a central muscle relaxant used to treat skeletal muscle spasms.Target: Carbonic AnhydraseMethocarbamol is the carbamate of guaifenesin, but does not produce guaifenesin as a metabolite, because the carbamate bond is not hydrolyzed metabolically; metabolism is by Phase I ring hydroxylation and O-demethylation, followed by Phase II conjugation. All the major metabolites are unhydrolyzed carbamates. Methocarbamol is used as an adjunct in the symptomatic treatment of musculoskeletal conditions associated with painful muscle spasm [1, 2].
Name Methocarbamol
Synonyms Guaiacol glyceryl ether carbamate
neuraxin
Relax
Methyocarbamol
Delaxin
2-hydroxy-3-{[2-(methyloxy)phenyl]oxy}propyl carbamate
Relestrid
Carbamic Acid 2-Hydroxy-3-(2-methoxyphenoxy)propyl Ester
guaifenesin carbamate
EINECS 208-524-3
2-Hydroxy-3-(2-methoxyphenoxy)propyl carbamate
Lumirelax
Miolaxene
Robaxan
Perilax
MFCD00057662
methocarbamol
Robamol
AHR 85
Traumacut
Miowas
Robaxin
1,2-Propanediol, 3-(2-methoxyphenoxy)-, 1-carbamate
Avetil
Description Methocarbamol is a central muscle relaxant used to treat skeletal muscle spasms.Target: Carbonic AnhydraseMethocarbamol is the carbamate of guaifenesin, but does not produce guaifenesin as a metabolite, because the carbamate bond is not hydrolyzed metabolically; metabolism is by Phase I ring hydroxylation and O-demethylation, followed by Phase II conjugation. All the major metabolites are unhydrolyzed carbamates. Methocarbamol is used as an adjunct in the symptomatic treatment of musculoskeletal conditions associated with painful muscle spasm [1, 2].
Related Catalog
References

[1]. Bruce, R.B., L.B. Turnbull, and J.H. Newman, Metabolism of methocarbamol in the rat, dog, and human. J Pharm Sci, 1971. 60(1): p. 104-6.

[2]. Sica, D.A., et al., Pharmacokinetics and protein binding of methocarbamol in renal insufficiency and normals. Eur J Clin Pharmacol, 1990. 39(2): p. 193-4.
Density 1.3±0.1 g/cm3
Boiling Point 472.5±40.0 °C at 760 mmHg
Melting Point 95-97ºC
Molecular Formula C11H15NO5
Molecular Weight 241.240
Flash Point 239.6±27.3 °C
Exact Mass 241.095016
PSA 91.01000
LogP 0.55
Vapour Pressure 0.0±1.2 mmHg at 25°C
Index of Refraction 1.541
Storage condition -20°C Freezer

CHEMICAL IDENTIFICATION

RTECS NUMBER :
TY8750000
CHEMICAL NAME :
1,2-Propanediol, 3-(o-methoxyphenoxy)-, 1-carbamate
CAS REGISTRY NUMBER :
532-03-6
BEILSTEIN REFERENCE NO. :
1884446
LAST UPDATED :
199701
DATA ITEMS CITED :
13
MOLECULAR FORMULA :
C11-H15-N-O5
MOLECULAR WEIGHT :
241.27
WISWESSER LINE NOTATION :
ZVO1YQ1OR BO1

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 :
1320 mg/kg
TOXIC EFFECTS :
Behavioral - altered sleep time (including change in righting reflex) Behavioral - muscle weakness Behavioral - ataxia
REFERENCE :
JPETAB Journal of Pharmacology and Experimental Therapeutics. (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.1- 1909/10- Volume(issue)/page/year: 129,75,1960
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
815 mg/kg
TOXIC EFFECTS :
Behavioral - somnolence (general depressed activity)
REFERENCE :
ARZNAD Arzneimittel-Forschung. Drug Research. (Editio Cantor Verlag, Postfach 1255, W-7960 Aulendorf, Fed. Rep. Ger.) V.1- 1951- Volume(issue)/page/year: 17,242,1967
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
812 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
NIIRDN Drugs in Japan (Ethical Drugs). (Yakugyo Jiho Co., Ltd., Tokyo, Japan) Volume(issue)/page/year: 6,836,1982
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
950 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 2,264,1960
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Subcutaneous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
780 mg/kg
TOXIC EFFECTS :
Behavioral - anticonvulsant
REFERENCE :
APTOA6 Acta Pharmacologica et Toxicologica. (Copenhagen, Denmark) V.1-59, 1945-86. For publisher information, see PHTOEH Volume(issue)/page/year: 19,247,1962
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
774 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
NIIRDN Drugs in Japan (Ethical Drugs). (Yakugyo Jiho Co., Ltd., Tokyo, Japan) Volume(issue)/page/year: 6,836,1982
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Mammal - dog
DOSE/DURATION :
2 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
27ZQAG "Psychotropic Drugs and Related Compounds," 2nd ed., Usdin, E., and D.H. Efron, Washington, DC, 1972 Volume(issue)/page/year: -,398,1972
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
680 mg/kg
TOXIC EFFECTS :
Sense Organs and Special Senses (Eye) - effect, not otherwise specified Behavioral - altered sleep time (including change in righting reflex) Behavioral - rigidity (including catalepsy)
REFERENCE :
IJNEAQ International Journal of Neuropharmacology. (New York, NY) V.1-8, 1962-69. For publisher information, see NEPHBW. Volume(issue)/page/year: 5,305,1966
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - hamster
DOSE/DURATION :
1410 mg/kg
TOXIC EFFECTS :
Behavioral - altered sleep time (including change in righting reflex) Behavioral - muscle weakness Behavioral - ataxia
REFERENCE :
JPETAB Journal of Pharmacology and Experimental Therapeutics. (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.1- 1909/10- Volume(issue)/page/year: 129,75,1960
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - hamster
DOSE/DURATION :
1050 mg/kg
TOXIC EFFECTS :
Behavioral - altered sleep time (including change in righting reflex) Behavioral - muscle weakness Behavioral - ataxia
REFERENCE :
JPETAB Journal of Pharmacology and Experimental Therapeutics. (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.1- 1909/10- Volume(issue)/page/year: 129,75,1960 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 84354 No. of Facilities: 350 (estimated) No. of Industries: 3 No. of Occupations: 3 No. of Employees: 1853 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 84354 No. of Facilities: 188 (estimated) No. of Industries: 1 No. of Occupations: 4 No. of Employees: 9546 (estimated) No. of Female Employees: 8341 (estimated)
Symbol GHS07 GHS08
GHS07, GHS08
Signal Word Danger
Hazard Statements H302-H317-H334
Precautionary Statements P261-P280-P284-P304 + P340-P333 + P313-P342 + P311
Personal Protective Equipment dust mask type N95 (US);Eyeshields;Faceshields;Gloves
Hazard Codes Xn:Harmful
Risk Phrases R22;R42/43
Safety Phrases S36
RIDADR NONH for all modes of transport
WGK Germany 3
RTECS TY8750000
HS Code 2924299090
HS Code 2924299090
Summary 2924299090. other cyclic amides (including cyclic carbamates) and their derivatives; salts thereof. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%
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