EDQM reference standards.

European Pharmacopoeia chemical reference substances (CRS), biological reference preparations (BRP) and herbal reference standards (HRS) established by the EDQM: substances for identification and assay, impurities, mixtures for peak identification and system suitability. Every standard is linked to the family of its active ingredient.

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Paroxetine hydrochloride (anhydrous) impurity H CRS

Impurity

EDQM code: Y0000581
Family: Paroxetine
Corresponds to: Paroxetine Hydrochloride (Anhydrous) EP Impurity H

Paroxetine hydrochloride hemihydrate CRS

Reference substance

EDQM code: Y0000281
Family: Paroxetine
Corresponds to: Paroxetine Hydrochloride Hemihydrate

Paroxetine impurity A CRS

Impurity

EDQM code: Y0000233
Family: Paroxetine
Corresponds to: Paroxetine EP Impurity A Hydrochloride

Paroxetine impurity D CRS

Impurity

EDQM code: Y0000256
Family: Paroxetine
Corresponds to: Paroxetine EP Impurity D Hydrochloride

Paroxetine impurity E CRS

Impurity

EDQM code: Y0000580
Family: Paroxetine
Corresponds to: Paroxetine EP Impurity E

Parthenolide CRS

Reference substance

EDQM code: Y0001838
Family: Feverfew
Corresponds to: Parthenolide

Pefloxacin for system suitability CRS

For system suitability

EDQM code: Y0002461
Family: Pefloxacin

Pefloxacin impurity B CRS

Impurity

EDQM code: P0309020
Family: Pefloxacin
Corresponds to: Pefloxacin EP Impurity B

Pefloxacin impurity C CRS

Impurity

EDQM code: P0309030
Family: Pefloxacin
Corresponds to: Pefloxacin EP Impurity C

Pefloxacin mesilate dihydrate CRS

Reference substance

EDQM code: P0309000
Family: Pefloxacin
Corresponds to: Pefloxacin Mesilate Dihydrate

Frequently asked questions

What is the difference between an EDQM standard and a secondary standard?

The EDQM standard is the official primary standard of the European Pharmacopoeia, the one named in the monograph. A secondary standard, like ours with certificate of analysis, is fully characterised and can be qualified against the primary: it suits routine use and costs less.

Does the EDQM standard come with a certificate of analysis?

No: EDQM standards have no certificate of analysis like commercial standards. They come with a leaflet stating the intended use and, where needed, the assigned content; batch validity is checked on the EDQM website.

How long does delivery take?

We give you availability and delivery time with the quote, within 24 hours of your request.