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 659
    Pack size 100 mg
    Substance name dipivefrine impurity standard
    CAS Number 64019-93-8
    Quantitative No
    Current batch 2315
    E-mail to order:  bpcrs@mhra.gov.uk
  • Search result 2

    Category Number 589
    Pack size 100 mg
    Substance name diprenorphine
    CAS Number 14357-78-9
    Quantitative Yes
    Current batch 3547
    Discontinued
  • Search result 3

    Category Number 131
    Pack size 100 mg
    Substance name dipyridamole
    CAS Number 58-32-2
    Quantitative Yes
    Current batch 3374
    QTY (Max 25)
  • Search result 4

    Category Number 1102
    Pack size 25 mg
    Substance name dipyridamole impurity standard
    CAS Number 58-32-2
    Quantitative No
    Current batch 3697
    QTY (Max 25)
  • Search result 5

    Category Number 1224
    Pack size 100 mg
    Substance name disodium edetate
    CAS Number 6381-92-6
    Quantitative Yes
    Current batch 4067
    QTY (Max 25)
  • Search result 6

    Category Number 577
    Pack size 1
    Substance name disodium ethoxyphosphinatoformate
    CAS Number Not applicable
    Quantitative Not applicable
    Current batch
    Discontinued
  • Search result 7

    Category Number 615
    Pack size 100 mg
    Substance name disodium pamidronate
    CAS Number 109552-15-0
    Quantitative Yes
    Current batch 4869
    QTY (Max 25)
  • Search result 8

    Category Number 132
    Pack size 50 mg
    Substance name disulfiram
    CAS Number 97-77-8
    Quantitative Yes
    Current batch 3277
    QTY (Max 25)
  • Search result 9

    Category Number 385
    Pack size 100 mg
    Substance name dithranol
    CAS Number 1143-38-0
    Quantitative Yes
    Current batch 2932
    QTY (Max 25)
  • Search result 10

    Category Number 386
    Pack size 50 mg
    Substance name dithranol dimer
    CAS Number 31991-54-5
    Quantitative No
    Current batch 2986
    QTY (Max 25)