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 1337
    Pack size 50mg
    Substance name pyridostigmine bromide
    CAS Number 101-26-8
    Quantitative Yes
    Current batch 4929
    QTY (Max 25)
  • Search result 2

    Category Number 458
    Pack size 100 mg
    Substance name pyridoxine hydrochloride
    CAS Number 58-56-0
    Quantitative Yes
    Current batch 4092
    QTY (Max 25)
  • Search result 3

    Category Number 1227
    Pack size 100 mg
    Substance name pyrimethamine
    CAS Number 58-14-0
    Quantitative Yes
    Current batch 4113
    QTY (Max 25)
  • Search result 4

    Category Number 1215
    Pack size 100 mg
    Substance name quetiapine fumarate
    CAS Number 111974-72-2
    Quantitative Yes
    Current batch 4042
    QTY (Max 25)
  • Search result 5

    Category Number 1217
    Pack size 25 mg
    Substance name quetiapine impurity G
    CAS Number 3159-07-7
    Quantitative No
    Current batch 4070
    QTY (Max 25)
  • Search result 6

    Category Number 1216
    Pack size 25 mg
    Substance name quetiapine impurity I
    CAS Number 329216-67-3
    Quantitative No
    Current batch 4102
    QTY (Max 25)
  • Search result 7

    Category Number 1193
    Pack size 100 mg
    Substance name quinapril hydrochloride
    CAS Number 82586-55-8
    Quantitative Yes
    Current batch 3930
    QTY (Max 2)
  • Search result 8

    Category Number 863
    Pack size 300 mg
    Substance name quinidine sulfate
    CAS Number 50-54-4
    Quantitative No
    Current batch 3876
    QTY (Max 25)
  • Search result 9

    Category Number 862
    Pack size 300 mg
    Substance name quinine sulfate
    CAS Number 6119-70-6
    Quantitative Yes
    Current batch 4695
    QTY (Max 25)
  • Search result 10

    Category Number 751
    Pack size 100 mg
    Substance name ramipril
    CAS Number 87333-19-5
    Quantitative Yes
    Current batch 3446
    QTY (Max 1)