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 135
    Pack size 100 mg
    Substance name doxapram hydrochloride
    CAS Number 7081-53-0
    Quantitative Yes
    Current batch 4227
    QTY (Max 25)
  • Search result 2

    Category Number 1301
    Pack size 10mg
    Substance name doxazosin impurity standard
    CAS Number 77883-43-3
    Quantitative No
    Current batch 4775
    QTY (Max 25)
  • Search result 3

    Category Number 1300
    Pack size 100mg
    Substance name doxazosin mesilate
    CAS Number 77883-43-3
    Quantitative Yes
    Current batch 4753
    QTY (Max 25)
  • Search result 4

    Category Number 136
    Pack size 100 mg
    Substance name doxepin hydrochloride
    CAS Number 1229-29-4
    Quantitative Yes
    Current batch 4803
    QTY (Max 25)
  • Search result 5

    Category Number 823
    Pack size 25 mg
    Substance name doxepin impurity standard
    CAS Number Not applicable
    Quantitative No
    Current batch 4049
    QTY (Max 25)
  • Search result 6

    Category Number 990
    Pack size 100 mg
    Substance name doxorubicin hydrochloride
    CAS Number 25316-40-9
    Quantitative Yes
    Current batch 3285
    QTY (Max 25)
  • Search result 7

    Category Number 780
    Pack size 100 mg
    Substance name doxycycline hyclate
    CAS Number 24390-14-5
    Quantitative Yes
    Current batch 4127
    QTY (Max 25)
  • Search result 8

    Category Number 675
    Pack size 100 mg
    Substance name droperidol
    CAS Number 548-73-2
    Quantitative Yes
    Current batch 3429
    QTY (Max 25)
  • Search result 9

    Category Number 1289
    Pack size 100mg
    Substance name duloxetine hydrochloride
    CAS Number 136434-34-9
    Quantitative Yes
    Current batch 4605
    QTY (Max 25)
  • Search result 10

    Category Number 1290
    Pack size 10mg
    Substance name duloxetine impurity standard
    CAS Number 136434-34-9
    Quantitative No
    Current batch 4693
    QTY (Max 25)