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 138
    Pack size 50 mg
    Substance name dydrogesterone
    CAS Number 152-62-5
    Quantitative No
    Current batch 2801
    Discontinued
  • Search result 2

    Category Number 139
    Pack size 100 mg
    Substance name econazole nitrate
    CAS Number 24169-02-6
    Quantitative Yes
    Current batch 4208
    QTY (Max 25)
  • Search result 3

    Category Number 743
    Pack size 20 mg
    Substance name enalapril diketopiperazine
    CAS Number 115729-52-7
    Quantitative No
    Current batch 4286
    QTY (Max 25)
  • Search result 4

    Category Number 741
    Pack size 100 mg
    Substance name enalapril maleate
    CAS Number 76095-16-4
    Quantitative Yes
    Current batch 4904
    QTY (Max 25)
  • Search result 5

    Category Number 742
    Pack size 20 mg
    Substance name enalaprilat
    CAS Number 84680-54-6
    Quantitative No
    Current batch 3090
    QTY (Max 25)
  • Search result 6

    Category Number 1286
    Pack size 100 mg
    Substance name enrofloxacin
    CAS Number 93106-60-6
    Quantitative Yes
    Current batch 4597
    QTY (Max 25)
  • Search result 7

    Category Number 387
    Pack size 100 mg
    Substance name ephedrine hydrochloride
    CAS Number 50-98-6
    Quantitative Yes
    Current batch 4284
    Out of Stock
  • Search result 8

    Category Number 992
    Pack size 100 mg
    Substance name epirubicin hydrochloride
    CAS Number 56390-09-1
    Quantitative Yes
    Current batch 3559
    QTY (Max 25)
  • Search result 9

    Category Number 788
    Pack size 500 mg
    Substance name ergocalciferol
    CAS Number 50-14-6
    Quantitative Yes
    Current batch 4439
    QTY (Max 25)
  • Search result 10

    Category Number 405
    Pack size 100 mg
    Substance name ergometrine maleate
    CAS Number 129-51-1
    Quantitative Yes
    Current batch 4545
    Out of Stock