British Pharmacopoeia Chemical reference substances (BPCRS)

These Primary standards are established using absolute methods and the declared content figures are determined without comparing to another substance. You should use BPCRS to perform the tests in the British Pharmacopoeia (BP) or BP (Veterinary). Do not eat BPCRS or feed them to animals – you should only use BPCRS for chemical analysis. They are not suitable for any other use.

The BPCRS Catalogue is now available for download in Excel format, updated monthly to reflect the latest listings.

New customer rules in Egypt

New customs rules in Egypt means additional actions are required by purchasers of the BPCRS if your order is over the value of £1600 or the shipment weighs more than 50kg. Please refer to the Egypt shipments guidance to learn what steps you will need to take if your order meets this criteria.  

970 items
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  • Search result 1

    Category Number 841
    Pack size 100 mg
    Substance name hydroxyzine hydrochloride
    CAS Number 2192-20-3
    Quantitative Yes
    Current batch 3745
    QTY (Max 25)
  • Search result 2

    Category Number 198
    Pack size 100 mg
    Substance name hyoscine butylbromide
    CAS Number 149-64-4
    Quantitative Yes
    Current batch 4402
    QTY (Max 25)
  • Search result 3

    Category Number 199
    Pack size 200 mg
    Substance name hyoscine hydrobromide
    CAS Number 6533-68-2
    Quantitative Yes
    Current batch 4437
    QTY (Max 25)
  • Search result 4

    Category Number 774
    Pack size 1
    Substance name hypromellose
    CAS Number 9004-65-3
    Quantitative Not applicable
    Current batch 2817
    Discontinued
  • Search result 5

    Category Number 539
    Pack size 200 mg
    Substance name ibuprofen
    CAS Number 15687-27-1
    Quantitative Yes
    Current batch 3976
    QTY (Max 25)
  • Search result 6

    Category Number 880
    Pack size 1.15 mL
    Substance name ibuprofen impurity B
    CAS Number 3585-49-7
    Quantitative No
    Current batch 4529
    QTY (Max 10)
  • Search result 7

    Category Number 202
    Pack size 100 mg
    Substance name idoxuridine
    CAS Number 54-42-2
    Quantitative Yes
    Current batch 1722
    QTY (Max 25)
  • Search result 8

    Category Number 759
    Pack size 100 mg
    Substance name ifosfamide
    CAS Number 3778-73-2
    Quantitative Yes
    Current batch 2773
    QTY (Max 25)
  • Search result 9

    Category Number 1303
    Pack size 10mg
    Substance name imatinib impurity standard
    CAS Number 220127-57-1
    Quantitative No
    Current batch 4778
    QTY (Max 25)
  • Search result 10

    Category Number 1302
    Pack size 100mg
    Substance name imatinib mesilate
    CAS Number 220127-57-1
    Quantitative Yes
    Current batch 4762
    QTY (Max 25)