Active ingredientMethocarbamol sulfateCat. No. P-M083-002
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Active ingredient · Methocarbamol family
Pharmaceutical analytical standardMethocarbamol
Synonyms: Robaxin, Metocarbamol, Etroflex, Miolaxene, Miorilas, Relestrid, Surquetil, Tresortil, Avetil, Delaxin, Miowas, Metocarbamolo, Metofenina, Myolaxene, Reflexyn, Romethocarb, Robinax, Forbaxin, Guaiphenesin carbamate, Guaiacol glyceryl ether carbamate, Guaiphenesine carbamate, Glycerylguaiacolate carbamate, Guiacol-gliceriletere monocarbammato, Robaxin-750, NSC 170960, Carbamate, Guaiphenesin, Miolaxin, Tanlor, Methcarbamol, Robaxin-V Injectable, Methocarb 500-EZS, Lumirelax, Perilax, Neuraxin, Parabaxin, Methocal, Metofenia, Glycerylguajacol-carbamate, Robaxan, Robaxine, Robaxon, Carbamic acid, 2-hydroxy-3-(o-methoxyphenoxy)propyl ester, Robamol, Traumacut, Robaxisol, Carbamic Acid 2-Hydroxy-3-(2-methoxyphenoxy)propyl Ester, Pharmakon1600-01500397, NSC 757112
- Cat. No.
- P-M083-001
- CAS
- 532-03-6
- Alternative CAS
- 145841-69-6 (alternative CAS, same compound)
- 3967-43-9 (alternative CAS, same compound)
- Formula
- C11H15NO5
- Molecular weight
- 241.24 g/mol
- Category
- Active ingredient (API)
A centrally acting muscle relaxant developed in 1956 to improve on mephenesin, which was weak and short-acting, and approved in the United States in 1957 for acute, painful muscle spasms.
Did you know?It is the carbamate derivative of guaifenesin, the expectorant in many cough syrups, but it does not turn into guaifenesin. It can colour urine black, blue or green.
The two levels compared
| Level 1 Mass balance | Level 2 Mass balance + qNMR | |
|---|---|---|
| Identity (IR, MS, 1H and 13C-NMR; peptides: ESI-MS, MALDI-TOF and IR) | ✓ | ✓ |
| HPLC purity (min. 95%) | ✓ | ✓ |
| Content by mass balance (min. 90%; peptides: for information only)* | ✓ | ✓ |
| Content verified by qNMR (small molecules only) | · | ✓ |
| Suitable to qualify it as an in-house primary standard (ICH Q7) | · | ✓ |
* Mass balance is performed on every molecule. The only exceptions are cases where the chemistry of the molecule prevents it, for example oils and highly volatile substances, on which some of the required measurements cannot be made: in those cases the CoA states how the content was assigned.
What you receive
The analytical standard
Shipped under controlled temperature when the molecule requires it.
Certificate of analysis (CoA)
For every lot: identity, purity and assay, with the supporting spectra and chromatograms.
Safety data sheet (SDS)
Sent with every order.
Tracked shipment
Follow your shipment live, from our warehouse to your lab.
More products in the Methocarbamol family
Active ingredientMethocarbamol sulfateCat. No. P-M083-002
MetaboliteMethocarbamol Glucuronide (Mixture of Diastereomers)Cat. No. P-M083-003CAS 56305-74-9
Isotopically labelledMethocarbamol-13C-d3Cat. No. P-M083-004
Isotopically labelledMethocarbamol-d3Cat. No. P-M083-005CAS 1346600-86-9
Isotopically labelledMethocarbamol-d5Cat. No. P-M083-006CAS 1189699-70-4
ImpurityMethocarbamol B-IsomerCat. No. P-M083-007CAS 10488-39-8
ImpurityMethocarbamol Impurity 1Cat. No. P-M083-008CAS 4394-15-4Frequently asked questions
Is mass balance always performed?
Yes, on every molecule. The only exceptions are cases where the chemistry of the molecule prevents it: for example oils and highly volatile substances, on which some measurements (such as thermogravimetry) cannot be made. In those cases the CoA states which method was used to assign the content.
Can I ask for a different quantity?
Yes. The quantities are only suggestions: choose "Other" and enter the milligrams or grams you need.
Which level should I choose?
Level 1 is enough for most routine testing. Level 2 adds an independent qNMR content value and is meant for labs that need to qualify an in-house primary standard. For peptides and similar molecules, Level 2 is not available.
When will I get the quote?
Within 24 working hours, with price, availability and delivery time.
Need a molecule you cannot find?
Custom synthesis of impurities, metabolites and labelled compounds, with the same characterisation level.