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 656
    Pack size 25 mg
    Substance name famotidine degradation impurity 2
    CAS Number 76824-16-3
    Quantitative No
    Current batch 3068
    Discontinued
  • Search result 2

    Category Number 654
    Pack size 25 mg
    Substance name famotidine impurity C
    CAS Number 106433-44-7
    Quantitative No
    Current batch 3799
    QTY (Max 25)
  • Search result 3

    Category Number 620
    Pack size 100 mg
    Substance name felbinac
    CAS Number 5728-52-9
    Quantitative Yes
    Current batch 4395
    QTY (Max 25)
  • Search result 4

    Category Number 777
    Pack size 100 mg
    Substance name felodipine
    CAS Number 72509-76-3
    Quantitative Yes
    Current batch 2825
    QTY (Max 25)
  • Search result 5

    Category Number 758
    Pack size 20 mg
    Substance name felodipine impurity standard
    CAS Number 72509-76-3
    Quantitative No
    Current batch 2856
    QTY (Max 25)
  • Search result 6

    Category Number 692
    Pack size 100 mg
    Substance name fenbendazole
    CAS Number 43210-67-9
    Quantitative Yes
    Current batch 4820
    QTY (Max 25)
  • Search result 7

    Category Number 693
    Pack size 25 mg
    Substance name fenbendazole impurity 1
    CAS Number 53065-28-4
    Quantitative No
    Current batch 4621
    QTY (Max 25)
  • Search result 8

    Category Number 354
    Pack size 100 mg
    Substance name fenbufen
    CAS Number 36330-85-5
    Quantitative Yes
    Current batch 1871
    Discontinued
  • Search result 9

    Category Number 1280
    Pack size 100mg
    Substance name fenofibrate
    CAS Number 49562-28-9
    Quantitative Yes
    Current batch 4596
    QTY (Max 25)
  • Search result 10

    Category Number 661
    Pack size 25 mg
    Substance name fenoterol degradation impurity A
    CAS Number 161040-25-1
    Quantitative No
    Current batch 3744
    Discontinued