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 96
    Pack size 100 mg
    Substance name cyclizine hydrochloride
    CAS Number 303-25-3
    Quantitative Yes
    Current batch 3678
    QTY (Max 25)
  • Search result 2

    Category Number 886
    Pack size 25 mg
    Substance name cyclobenzaprine hydrochloride
    CAS Number 6202-23-9
    Quantitative No
    Current batch 4466
    QTY (Max 25)
  • Search result 3

    Category Number 98
    Pack size 100 mg
    Substance name cyclopenthiazide
    CAS Number 742-20-1
    Quantitative No
    Current batch 3958
    QTY (Max 25)
  • Search result 4

    Category Number 380
    Pack size 100 mg
    Substance name cyclopentolate hydrochloride
    CAS Number 5870-29-1
    Quantitative Yes
    Current batch 3151
    QTY (Max 25)
  • Search result 5

    Category Number 1094
    Pack size 100 mg
    Substance name cyclophosphamide
    CAS Number 6055-19-2
    Quantitative Yes
    Current batch 3468
    QTY (Max 25)
  • Search result 6

    Category Number 688
    Pack size 100 mg
    Substance name cyproterone acetate
    CAS Number 427-51-0
    Quantitative Yes
    Current batch 3085
    QTY (Max 25)
  • Search result 7

    Category Number 383
    Pack size 100 mg
    Substance name cytarabine
    CAS Number 147-94-4
    Quantitative Yes
    Current batch 3986
    QTY (Max 25)
  • Search result 8

    Category Number 829
    Pack size 50 mg
    Substance name D-α-(4-hydroxyphenyl)glycine
    CAS Number 22818-40-2
    Quantitative No
    Current batch 2941
    QTY (Max 25)
  • Search result 9

    Category Number 100
    Pack size 25 mg
    Substance name dacarbazine
    CAS Number 4342-03-4
    Quantitative No
    Current batch 1303
    QTY (Max 25)
  • Search result 10

    Category Number 428
    Pack size 50 mg
    Substance name danthron
    CAS Number 117-10-2
    Quantitative No
    Current batch 3492
    QTY (Max 25)