Dicloxacillin Sodium impurities and related standards

Dicloxacillin Sodium is held here as a working collection of 24 reference materials across 3 CAS numbers. 15 of the entries are impurity-type materials of the parent, 22 are salt or counter-ion variants. 2 entries carry a verified structure drawing, a coverage of 8%; the rest are listed without a structure rather than with an unverified one. 2 of them sit in tier A or B, meaning the data behind the page is complete enough to be indexed and quoted directly, while 22 remain tier C and are kept for search coverage. Method transfer is the usual reason a laboratory needs the whole set rather than a few members: specificity has to be demonstrated against every impurity that could plausibly co-elute, and a spiked solution prepared from the actual standards is the accepted way to do it. Where a letter exists in a monograph but not in a supplier catalogue, that gap is what stops a validation study, and it is worth asking for the letter rather than for a percentage.

Sources: DailyMed (US NLM) - DICLOXACILLIN SODIUM CAPSULE [REDPHARM DRUG].

3 reference standards related to Dicloxacillin Sodium held in the RSSE catalogue — pharmacopoeial impurities, non-compendial impurities, metabolites and labelled analogues where available.

In this group: 1 impurity reference standard · 1 general reference standard · 1 pharmaceutical intermediate. CAS numbers are listed for 3 of 3; 3 entries carry a structure drawing.

3 reference standards

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  Dicloxacillin Sodium EP Impurity A

  CAS 2088415-70-5C19H19Cl2N3O6S

  MW 488.34

  BACK ORDERRS-I516262

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• 

  5'-Hydroxymethyl Dicloxacillin

  CAS 40125-80-2C19H17Cl2N3O6S

  MW 485.02

  BACK ORDERRS-Z401IKE

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• 

  [3-(2,6-Dichlorophenyl)-5-methyl-4-isoxazolyl]carbonyl N3-[N-[[3-(2,6-Dichlorophenyl)-5-methyl-4-isoxazolyl]carbonyl]glycinyl]penicilloic Acid

  CAS 934986-85-3C32H27Cl4N5O9S

  MW 799.46

  BACK ORDERRS-P006A0M

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3 reference standards

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