Cefmetazole impurities and related standards
12 reference standards related to Cefmetazole held in the RSSE catalogue — pharmacopoeial impurities, non-compendial impurities, metabolites and labelled analogues where available.
CAS numbers are listed for 12 of 12; 11 entries carry a structure drawing.
| Compound | CAS No. | Catalogue No. | Formula | MW |
|---|---|---|---|---|
| Cefmetazole Impurity 31 (Chloroacetonitrile) | 107-14-2 | RS-C063001 | C2H2ClN | 75.5 |
| Cefmetazole Impurity 13 | 24209-38-9 | RS-C063002 | C10H12N6O3S2 | 328.37 |
| Cefmetazole Impurity 38 | 310466-38-7 | RS-C063003 | C8H5FS | 152.19 |
| Cefmetazole Impurity 32 | 52069-55-3 | RS-C063004 | C4H4ClNOS | 149.59 |
| Cefmetazole Impurity 14 | 55817-29-3 | RS-C063005 | C4H5NO2S | 131.15 |
| Cefmetazole Impurity 15 | 56610-72-1 | RS-C063006 | C24H24N6O4S2 | 524.62 |
| Cefmetazole Impurity 8 | 56796-16-8 | RS-C063007 | C15H17N3O7S2 | 415.44 |
| Cefmetazole Impurity 17 | 57617-09-1 | RS-C063008 | C13H15ClN6O5S2 | 434.88 |
| Cefmetazole Impurity 10 | 70953-18-3 | RS-C063010 | C13H15N3O5S2 | 357.41 |
| Cefmetazole Impurity 4 | 70953-19-4 | RS-C063011 | C13H15N3O6S2 | 373.4 |
| Cefmetazole Impurity 12 | 74228-11-8 | RS-C063012 | C15H18N10O5S3 | 514.56 |
| Cefmetazole Impurity 18 | 60638-57-5 | RS-C063009 | C11H14N6O4S2 | 358.4 |
Structures
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Cefmetazole Impurity 31 (Chloroacetonitrile)
COA per lot -
Cefmetazole Impurity 13
COA per lot -
Cefmetazole Impurity 38
COA per lot -
Cefmetazole Impurity 32
COA per lot -
Cefmetazole Impurity 14
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Cefmetazole Impurity 15
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Cefmetazole Impurity 8
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Cefmetazole Impurity 17
COA per lot
Frequently asked
How many Cefmetazole-related reference standards do you hold?
12 standards are listed on this page as of the latest catalogue build. CAS numbers are published for 12 of them and 11 entries carry a structure drawing. The catalogue is extended as new lots are released.
Can you supply a Cefmetazole impurity that is not listed here?
Yes. Non-compendial impurities can be quoted from a structure — a CAS number is not required. Send the structure, a SMILES string or the parent drug substance with your enquiry and we will come back with availability.
What documentation is supplied with Cefmetazole impurities?
Every lot ships with its own certificate of analysis. The certificate records the catalogue number, the batch number, the tests performed, the specification applied and the result obtained for that lot. A safety data sheet is supplied with the shipment.
Do you publish prices or a lead time for Cefmetazole impurities?
No price list is published: quotations are prepared per enquiry, because availability and packing depend on the lot and the quantity you need. Send the catalogue number and the quantity and a technical contact will answer with availability and a quotation.
Cannot find the impurity you need? Non-compendial impurities can be quoted from a structure — a CAS number is not required. Write to sales@rssechem.com.