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 114
    Pack size 25 mg
    Substance name dibenzo[b,e]thiepin-11(6H)-one
    CAS Number 1531-77-7
    Quantitative No
    Current batch 3040
    QTY (Max 25)
  • Search result 2

    Category Number 116
    Pack size 100 mg
    Substance name dichlorophen
    CAS Number 97-23-4
    Quantitative Yes
    Current batch 1661
    Discontinued
  • Search result 3

    Category Number 420
    Pack size 100 mg
    Substance name dichlorophen impurity standard
    CAS Number 97-23-4
    Quantitative Yes
    Current batch 1858
    QTY (Max 25)
  • Search result 4

    Category Number 598
    Pack size 100 mg
    Substance name diclofenac diethylamine
    CAS Number 78213-16-8
    Quantitative No
    Current batch 4399
    QTY (Max 25)
  • Search result 5

    Category Number 828
    Pack size 25 mg
    Substance name diclofenac impurity A
    CAS Number 15362-40-0
    Quantitative No
    Current batch 3918
    QTY (Max 25)
  • Search result 6

    Category Number 619
    Pack size 100 mg
    Substance name diclofenac sodium
    CAS Number 15307-79-6
    Quantitative Yes
    Current batch 4601
    QTY (Max 25)
  • Search result 7

    Category Number 810
    Pack size 250 mg
    Substance name dicloxacillin sodium
    CAS Number 13412-64-1
    Quantitative No
    Current batch 3428
    QTY (Max 25)
  • Search result 8

    Category Number 989
    Pack size 100 mg
    Substance name dicycloverine hydrochloride
    CAS Number 67-92-5
    Quantitative No
    Current batch 3452
    QTY (Max 25)
  • Search result 9

    Category Number 118
    Pack size 100 mg
    Substance name diethanolamine fusidate
    CAS Number 16391-75-6
    Quantitative Yes
    Current batch 4732
    QTY (Max 10)
  • Search result 10

    Category Number 119
    Pack size 50 mg
    CAS Number 26692-07-9
    Quantitative No
    Current batch 811
    QTY (Max 25)