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 186
    Pack size 200 mg
    Substance name hydrochlorothiazide
    CAS Number 58-93-5
    Quantitative Yes
    Current batch 3093
    QTY (Max 25)
  • Search result 2

    Category Number 576
    Pack size 100 mg
    Substance name hydrocortisone
    CAS Number 50-23-7
    Quantitative Yes
    Current batch 4355
    QTY (Max 25)
  • Search result 3

    Category Number 584
    Pack size 100 mg
    Substance name hydrocortisone acetate
    CAS Number 50-03-3
    Quantitative Yes
    Current batch 3338
    QTY (Max 25)
  • Search result 4

    Category Number 187
    Pack size 100 mg
    Substance name hydrocortisone hydrogen succinate
    CAS Number 2203-97-6
    Quantitative No
    Current batch 4386
    QTY (Max 25)
  • Search result 5

    Category Number 188
    Pack size 100 mg
    Substance name hydrocortisone sodium phosphate
    CAS Number 6000-74-4
    Quantitative No
    Current batch 3325
    QTY (Max 25)
  • Search result 6

    Category Number 190
    Pack size 100 mg
    Substance name hydroflumethiazide
    CAS Number 135-09-1
    Quantitative No
    Current batch 1931
    QTY (Max 25)
  • Search result 7

    Category Number 1206
    Pack size 100 mg
    Substance name hydroquinone
    CAS Number 123-31-9
    Quantitative Yes
    Current batch 3950
    QTY (Max 25)
  • Search result 8

    Category Number 197
    Pack size 200 mg
    Substance name hydroxycarbamide
    CAS Number 127-07-1
    Quantitative Yes
    Current batch 3545
    QTY (Max 25)
  • Search result 9

    Category Number 1100
    Pack size 100 mg
    Substance name hydroxychloroquine sulfate
    CAS Number 747-36-4
    Quantitative Yes
    Current batch 3484
    QTY (Max 25)
  • Search result 10

    Category Number 193
    Pack size 1
    Substance name hydroxyprogesterone caproate
    CAS Number 630-56-8
    Quantitative Not applicable
    Current batch
    Discontinued