Active ingredientMethyl SalicylateCat. No. P-M091-001CAS 119-36-8
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Pharmacopoeial impurity · Methyl Salicylate family
Pharmaceutical analytical standardMethyl Salicylate EP Impurity J
Synonyms: methyl 2-hydroxy-5-methylbenzoate, Benzoic acid, 2-hydroxy-5-methyl-, methyl ester, NSC 165635, Methylsalicylic acid methyl ester, Methyl salicylate impurity j (ep impurity), p-Cresotic Acid Methyl Ester
- Cat. No.
- P-M091-004
- CAS
- 22717-57-3
- Alternative CAS
- N/A
- Formula
- C9H10O3
- Molecular weight
- 166.18 g/mol
- Category
- Pharmacopoeial impurity (EP/USP)
Family: Methyl Salicylate
The methyl ester of salicylic acid, produced by many plants, especially wintergreen and some birches. It is used in deep-heating liniments for muscle aches and, in small amounts, as a flavouring.
Did you know?Plants attacked by insects release it into the air as a signal, attracting predators such as hoverflies. It was isolated in 1843 by Auguste Cahours from wintergreen oil.
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 Methyl Salicylate family
Active ingredientMethyl SalicylateCat. No. P-M091-001CAS 119-36-8
Pharmacopoeial impurityMethyl Salicylate EP Impurity DCat. No. P-M091-002CAS 121-98-2
Pharmacopoeial impurityMethyl Salicylate EP Impurity FCat. No. P-M091-003CAS 118-61-6
Pharmacopoeial impurityMethyl Salicylate EP Impurity KCat. No. P-M091-005CAS 4670-56-8Frequently 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.