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 687
    Pack size 100 mg
    Substance name tioconazole impurity standard
    CAS Number 65899-73-2
    Quantitative No
    Current batch 4797
    QTY (Max 25)
  • Search result 2

    Category Number 878
    Pack size 100 mg
    Substance name tioguanine
    CAS Number 154-42-7
    Quantitative Yes
    Current batch 4388
    QTY (Max 25)
  • Search result 3

    Category Number 333
    Pack size 350 mg
    Substance name tobramycin
    CAS Number 32986-56-4
    Quantitative Yes
    Current batch 4251
    QTY (Max 25)
  • Search result 4

    Category Number 1218
    Pack size 100 mg
    Substance name tolterodine tartrate
    CAS Number 124937-52-6
    Quantitative Yes
    Current batch 4044
    QTY (Max 25)
  • Search result 5

    Category Number 1322
    Pack size 100mg
    Substance name Topiramate
    CAS Number 97240-79-4
    Quantitative Yes
    Current batch 4894
    QTY (Max 25)
  • Search result 6

    Category Number 1323
    Pack size 25mg
    Substance name Topiramate impurity A
    CAS Number 97240-79-4
    Quantitative Yes
    Current batch 4896
    QTY (Max 25)
  • Search result 7

    Category Number 744
    Pack size 100 mg
    Substance name tramadol hydrochloride
    CAS Number 36282-47-0
    Quantitative Yes
    Current batch 4717
    QTY (Max 25)
  • Search result 8

    Category Number 893
    Pack size 15 mg
    Substance name tramadol impurity A
    CAS Number 2914-77-4
    Quantitative No
    Current batch 3209
    QTY (Max 2)
  • Search result 9

    Category Number 1089
    Pack size 200 mg
    Substance name trandolapril
    CAS Number 87679-37-6
    Quantitative Yes
    Current batch 3432
    QTY (Max 25)
  • Search result 10

    Category Number 1085
    Pack size 10 mg
    Substance name trandolapril impurity E
    CAS Number 87679-71-8
    Quantitative No
    Current batch 3388
    QTY (Max 25)