Methocarbamol
- CAS No.
- 532-03-6
- Chemical Name:
- Methocarbamol
- Synonyms
- Metocarbamol;Relax;Delaxin;Robaxin;METHOCARBAMOL USP;ahr85;AHR 85;Avetil;Miowas;Perilax
- CBNumber:
- CB3148129
- Molecular Formula:
- C11H15NO5
- Molecular Weight:
- 241.24
- MDL Number:
- MFCD00057662
- MOL File:
- 532-03-6.mol
- MSDS File:
- SDS
| Product description | Number | Pack Size | Price |
| Methocarbamol United States Pharmacopeia (USP) Reference Standard | 1412008 | 200mg | $425 |
| Guaiacol glyceryl ether carbamate analytical standard | G7012 | 5g | $34.9 |
| Methocarbamol >98.0%(HPLC)(N) | M2254 | 5g | $30 |
| Methocarbamol >98.0%(HPLC)(N) | M2254 | 25g | $90 |
| Methocarbamol ≥98% | 23870 | 5g | $33 |
| More product size | |||
| Melting point | 95-97°C |
|---|---|
| Boiling point | 384.01°C (rough estimate) |
| Density | 1.2611 (rough estimate) |
| refractive index | 1.5080 (estimate) |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | DMSO (Slightly), Methanol (Slightly) |
| pka | 13.08±0.20(Predicted) |
| form | Solid |
| color | White to Off-White |
| Merck | 14,5980 |
| Major Application | clinical testing |
| InChI | InChI=1S/C11H15NO5/c1-15-9-4-2-3-5-10(9)16-6-8(13)7-17-11(12)14/h2-5,8,13H,6-7H2,1H3,(H2,12,14) |
| InChIKey | GNXFOGHNGIVQEH-UHFFFAOYSA-N |
| SMILES | C(OC(=O)N)C(O)COC1=CC=CC=C1OC |
| CAS DataBase Reference | 532-03-6(CAS DataBase Reference) |
| EWG's Food Scores | 1 |
| FDA UNII | 125OD7737X |
| ATC code | M03BA03 |
| NIST Chemistry Reference | Methocarbamol(532-03-6) |
| EPA Substance Registry System | Methocarbamol (532-03-6) |
| UNSPSC Code | 41116107 |
| NACRES | NA.24 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS07,GHS08 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H302-H317-H334 | |||||||||
| Precautionary statements | P280-P301+P312+P330-P302+P352 | |||||||||
| Hazard Codes | Xn | |||||||||
| Risk Statements | 22-42/43 | |||||||||
| Safety Statements | 36 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | TY8750000 | |||||||||
| TSCA | TSCA listed | |||||||||
| HS Code | 29222990 | |||||||||
| Storage Class | 3 - Flammable liquids | |||||||||
| Hazard Classifications | Acute Tox. 4 Dermal Acute Tox. 4 Inhalation Acute Tox. 4 Oral Eye Irrit. 2 Flam. Liq. 2 |
|||||||||
| Hazardous Substances Data | 532-03-6(Hazardous Substances Data) | |||||||||
| NFPA 704 |
|
Methocarbamol price More Price(31)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 1412008 | Methocarbamol United States Pharmacopeia (USP) Reference Standard | 532-03-6 | 200mg | $425 | 2025-07-31 | Buy |
| Sigma-Aldrich | G7012 | Guaiacol glyceryl ether carbamate analytical standard | 532-03-6 | 5g | $34.9 | 2022-05-15 | Buy |
| TCI Chemical | M2254 | Methocarbamol >98.0%(HPLC)(N) | 532-03-6 | 5g | $30 | 2025-07-31 | Buy |
| TCI Chemical | M2254 | Methocarbamol >98.0%(HPLC)(N) | 532-03-6 | 25g | $90 | 2025-07-31 | Buy |
| Cayman Chemical | 23870 | Methocarbamol ≥98% | 532-03-6 | 5g | $33 | 2024-03-01 | Buy |
Methocarbamol Chemical Properties,Uses,Production
Chemical Properties
White Solid
Originator
Robaxin ,Robins,US,1957
Uses
A muscle relaxant (skeletal).
Uses
For use as an adjunct to rest, physical therapy, and other measures for the relief of discomforts associated with acute, painful musculoskeletal conditions.
Uses
Methocarbamol suppresses multisynaptic pathways in the spinal cord. It is used for relieving spasms and skeletal muscle pain as well as for treating tetanus. Synonyms of this drug are delaxin, forbaxin, robamol, robaxin, and tresortil.
Definition
ChEBI: 2-hydroxy-3-(2-methoxyphenoxy)propyl carbamate is a carbamate ester that is glycerol in which one of the primary alcohol groups has been converted to its 2-methoxyphenyl ether while the other has been converted to the corresponding carbamate ester. It is a carbamate ester, a secondary alcohol and an aromatic ether.
Manufacturing Process
The starting material for methocarbamol is 3-o-methoxyphenoxy-1,2- propanediol (guaiacol glyceryl ether) (see entry under Guaifenesin for its preparation). To a stirred suspension of 198.2 g (1.0 mol) of 3-omethoxyphenoxy-1,2-propanediol in 1,000 ml of dry benzene contained in a 5-liter, 3-neck, round bottom flask equipped with a thermometer, dropping funnel and blade stirrer, was added dropwise (in 30 minutes) a solution of 98.9 g (1.0 mol) of phosgene in 400 ml of cold dry benzene. The mixture was stirred at 30°C until all solid material dissolved (about 3 hours was required) and stirring was continued for 30 minutes longer. To this mixture was added
dropwise 79.1 g (1.0 mol) of dry pyridine, the temperature being held below
30°C by cooling. After addition of the pyridine, stirring at 30°C was continued
for 30 minutes.
The mixture was cooled to 7°C, extracted with two 500-cc portions of ice
water to remove pyridine hydrochloride, and the benzene solution of 3-omethoxyphenoxy-2-hydroxypropyl chlorocarbonate was added to 500 ml of
cold concentrated ammonium hydroxide. The mixture was vigorously stirred at
5°C for 6 hours, then the crude white precipitate of 3-o-methoxyphenoxy-2-
hydroxypropyl carbamate was filtered off, dissolved in 1,500 ml of hot
benzene and completely dried by codistillation of last traces of water with
benzene, treated with decolorizing carbon and filtered while hot. On cooling
160 g of product crystallized as white needles melting at 88° to 90°C.
brand name
Delaxin (Ferndale); Forbaxin (Forest); Robaxin (Baxter Healthcare).
Therapeutic Function
Muscle relaxant
Synthesis Reference(s)
The Journal of Organic Chemistry, 22, p. 1595, 1957 DOI: 10.1021/jo01363a016
General Description
Methocarbamol, 3-(o-methoxyphenoxy)-1,2-propanediol 1-carbamate (Robaxin), issaid to be more sustained in effect than mephenesin. Likelysites for metabolic attack include the secondary hydroxylgroup and the two ring positions opposite the ether functions.The dihydric parent compound, guaifenesin, is used asan expectorant.
Synthesis
Methocarbamol, 3-(2-methoxyphenoxy)-1,2-propanediol-1 carbamate (15.3.13), is synthesized by successive reaction with phosgene and then ammonia into 3- (2-methoxyphenoxy)propanediol-1,2.
Veterinary Drugs and Treatments
In dogs and cats, methocarbamol is indicated (FDA approved) “as adjunctive therapy of acute inflammatory and traumatic conditions of the skeletal muscle and to reduce muscular spasms.” In horses, intravenous use is indicated (FDA approved) “as adjunctive therapy of acute inflammatory and traumatic conditions of the skeletal muscle to reduce muscular spasms, and effect striated muscle relaxation.” (Package insert; RobaxinV—Robins)
Methocarbamol Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| TCI AMERICA | 800-4238616 | sales@tciamerica.com | Americas | 23653 | 75 |
| Xiamen Wonderful Bio Technology Co., Ltd. | +8613043004613 | Sara@xmwonderfulbio.com | China | 283 | 58 |
| Shaanxi Xianhe Biotech Co., Ltd | +86-17709210191; +8617709210191 | Jerry@xhobio.com | China | 871 | 58 |
| Wuhan JiyunZen Tech Co., Ltd. | +86-18062099985 | Amyjiyunzen@yeah.net | China | 672 | 58 |
| Capot Chemical Co.,Ltd. | +86-（0）57185586718; +8613336195806 | sales@capot.com | China | 29735 | 60 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21597 | 55 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29831 | 58 |
| Xiamen AmoyChem Co., Ltd | +86-86-5926051114 +8615060885618 | sales@amoychem.com | China | 6369 | 58 |
| Standardpharm Co. Ltd. | 86-714-3992388 | overseasales1@yongstandards.com | United States | 14332 | 58 |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 | sales@conier.com | China | 49977 | 58 |
View Lastest Price from Methocarbamol manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-02-13 | Methocarbamol
532-03-6
|
US $0.00-0.00 / Kg/Drum | 1KG | 98.5%-101.5%; USP | 500KG | WUHAN FORTUNA CHEMICAL CO., LTD | |
 |
2026-02-10 | Methocarbamol
532-03-6
|
US $5.00-0.50 / KG | 0.10000000149011612KG | 99% hplc | 5000kg | Wuhan JiyunZen Tech Co., Ltd. | |
 |
2026-02-07 | Methocarbamol
532-03-6
|
US $0.00 / kg | 1kg | 98 | 250 | Xi an Biohorlden Industry Trade Co Ltd |
-
- Methocarbamol
532-03-6
- US $0.00-0.00 / Kg/Drum
- 98.5%-101.5%; USP
- WUHAN FORTUNA CHEMICAL CO., LTD
-
- Methocarbamol
532-03-6
- US $5.00-0.50 / KG
- 99% hplc
- Wuhan JiyunZen Tech Co., Ltd.
-
- Methocarbamol
532-03-6
- US $0.00 / kg
- 98
- Xi an Biohorlden Industry Trade Co Ltd
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