ImpurityMecobalamin Impurity 1Cat. No. P-M024-003CAS 1098-68-6
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Impurity or related compound · Mecobalamin family
Pharmaceutical analytical standardMecobalamin Impurity 3
Synonyms: (2R,3R,4S,5R)-2-(5,6-Dimethylbenzimidazol-1-yl)-5-(hydroxymethyl)oxolane-3,4-diol
- Cat. No.
- P-M024-019
- CAS
- N/A
- Alternative CAS
- N/A
- Formula
- C14H18N2O4
- Molecular weight
- 278.31 g/mol
- Category
- Impurity or related compound
Family: Mecobalamin
One of the two active coenzyme forms of vitamin B12, also known as methylcobalamin: it is the cofactor of methionine synthase, the enzyme that turns homocysteine into methionine. Compared with cyanocobalamin it carries a methyl group in place of the cyano group.
Did you know?It is one of the rare biological compounds with a direct bond between a metal and an alkyl group: at the centre of the molecule a cobalt atom is bonded to a methyl, and its crystals are bright red.
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 Mecobalamin family
ImpurityMecobalamin Impurity 1Cat. No. P-M024-003CAS 1098-68-6
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ImpurityMethylcobalaminCat. No. P-M024-006CAS 13422-55-4
ImpurityMecobalamin Impurity 2Cat. No. P-M024-017
ImpurityMecobalamin Impurity 4Cat. No. P-M024-022CAS 17234-76-3Frequently 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.