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 1263
    Pack size 100 mg
    Substance name tranexamic acid
    CAS Number 1197-18-8
    Quantitative Yes
    Current batch 4411
    QTY (Max 25)
  • Search result 2

    Category Number 734
    Pack size 25 mg
    Substance name tranexamic acid impurity standard
    CAS Number 1197-18-8
    Quantitative No
    Current batch 4790
    QTY (Max 25)
  • Search result 3

    Category Number 565
    Pack size 50 mg
    Substance name trans-clopenthixol acetate dihydrochloride
    CAS Number Not applicable
    Quantitative No
    Current batch 2018
    QTY (Max 25)
  • Search result 4

    Category Number 566
    Pack size 25 mg
    CAS Number 55501-05-8
    Quantitative No
    Current batch 2021
    QTY (Max 25)
  • Search result 5

    Category Number 561
    Pack size 25 mg
    Substance name trans-clopenthixol hydrochloride
    CAS Number 58045-22-0
    Quantitative No
    Current batch 4304
    QTY (Max 25)
  • Search result 6

    Category Number 556
    Pack size 25 mg
    Substance name trans-flupentixol decanoate dihydrochloride
    CAS Number 30909-51-4
    Quantitative No
    Current batch 3202
    QTY (Max 25)
  • Search result 7

    Category Number 544
    Pack size 25 mg
    Substance name transplatin
    CAS Number 14913-33-8
    Quantitative No
    Current batch 4730
    QTY (Max 25)
  • Search result 8

    Category Number 1275
    Pack size 25 mg
    Substance name tranylcypromine sulfate impurity standard
    CAS Number 13492-01-8
    Quantitative No
    Current batch 4578
    QTY (Max 25)
  • Search result 9

    Category Number 590
    Pack size 100 mg
    Substance name trazodone hydrochloride
    CAS Number 25332-39-2
    Quantitative Yes
    Current batch 4533
    QTY (Max 25)
  • Search result 10

    Category Number 591
    Pack size 50 mg
    Substance name trazodone hydrochloride impurity standard
    CAS Number 25332-39-2
    Quantitative No
    Current batch 4222
    QTY (Max 25)