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 505
    Pack size 25 mg
    Substance name promethazine sulfoxide
    CAS Number 7640-51-9
    Quantitative No
    Current batch 4626
    QTY (Max 25)
  • Search result 2

    Category Number 1031
    Pack size 1 mL
    Substance name propofol
    CAS Number 2078-54-8
    Quantitative Yes
    Current batch 4446
    QTY (Max 10)
  • Search result 3

    Category Number 698
    Pack size 25 mg
    Substance name propofol dimer
    CAS Number 2416-95-7
    Quantitative No
    Current batch 4343
    QTY (Max 25)
  • Search result 4

    Category Number 1032
    Pack size 0.05 mL
    Substance name propofol impurity J
    CAS Number 1988-11-0
    Quantitative No
    Current batch 4342
    QTY (Max 10)
  • Search result 5

    Category Number 1196
    Pack size 100 mg
    Substance name propranolol hydrochloride
    CAS Number 318-98-9
    Quantitative Yes
    Current batch 3911
    QTY (Max 25)
  • Search result 6

    Category Number 868
    Pack size 100 mg
    Substance name propylene glycol
    CAS Number 57-55-6
    Quantitative Yes
    Current batch 3082
    QTY (Max 25)
  • Search result 7

    Category Number 413
    Pack size 100 mg
    Substance name pseudoephedrine hydrochloride
    CAS Number 345-78-8
    Quantitative Yes
    Current batch 4383
    Out of Stock
  • Search result 8

    Category Number 717
    Pack size 25 mg
    Substance name pseudomorphine trihydrate
    CAS Number 6472-73-7
    Quantitative No
    Current batch 3972
    Discontinued
  • Search result 9

    Category Number 906
    Pack size 100 mg
    Substance name pyrazinamide
    CAS Number 98-96-4
    Quantitative Yes
    Current batch 4568
    QTY (Max 25)
  • Search result 10

    Category Number 1033
    Pack size 50 mg
    Substance name pyridostigmine bromide
    CAS Number 101-26-8
    Quantitative No
    Current batch 4106
    Discontinued