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 594
    Pack size 1
    Substance name desogestrel Δ3-isomer
    CAS Number Not applicable
    Quantitative Not applicable
    Current batch
    Discontinued
  • Search result 2

    Category Number 578
    Pack size 100 mg
    Substance name dexamethasone
    CAS Number 50-02-2
    Quantitative Yes
    Current batch 4287
    QTY (Max 25)
  • Search result 3

    Category Number 811
    Pack size 25 mg
    Substance name dexamethasone impurity standard
    CAS Number Not applicable
    Quantitative No
    Current batch 2970
    QTY (Max 2)
  • Search result 4

    Category Number 646
    Pack size 100 mg
    Substance name dexamethasone phosphate
    CAS Number 312-93-6
    Quantitative Yes
    Current batch 3634
    Discontinued
  • Search result 5

    Category Number 108
    Pack size 100 mg
    Substance name dexamethasone sodium phosphate
    CAS Number 2392-39-4
    Quantitative Yes
    Current batch 4205
    QTY (Max 2)
  • Search result 6

    Category Number 465
    Pack size 100 mg
    Substance name dextropropoxyphene hydrochloride
    CAS Number 1639-60-7
    Quantitative Yes
    Current batch 2246
    QTY (Max 25)
  • Search result 7

    Category Number 549
    Pack size 200 mg
    Substance name diacetylfluorescein
    CAS Number 596-09-8
    Quantitative Yes
    Current batch 3997
    QTY (Max 1)
  • Search result 8

    Category Number 887
    Pack size 150 mg
    Substance name diamorphine hydrochloride
    CAS Number 1502-95-0
    Quantitative Yes
    Current batch 3174
    QTY (Max 25)
  • Search result 9

    Category Number 111
    Pack size 100 mg
    Substance name diazepam
    CAS Number 439-14-5
    Quantitative No
    Current batch 4587
    QTY (Max 25)
  • Search result 10

    Category Number 858
    Pack size 100 mg
    Substance name dibenzosuberone
    CAS Number 1210-35-1
    Quantitative No
    Current batch 3006
    QTY (Max 25)