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
Sort by and results per page
  • Search result 1

    Category Number 867
    Pack size 150 mg
    Substance name losartan potassium
    CAS Number 124750-99-8
    Quantitative Yes
    Current batch 3089
    QTY (Max 25)
  • Search result 2

    Category Number 218
    Pack size 100 mg
    Substance name lymecycline
    CAS Number 992-21-2
    Quantitative No
    Current batch 4228
    QTY (Max 5)
  • Search result 3

    Category Number 776
    Pack size 25 mg
    Substance name lynestrenol
    CAS Number 52-76-6
    Quantitative No
    Current batch 2910
    QTY (Max 25)
  • Search result 4

    Category Number 1007
    Pack size 1200 mg
    Substance name mannitol
    CAS Number 69-65-8
    Quantitative No
    Current batch 3963
    QTY (Max 25)
  • Search result 5

    Category Number 1306
    Pack size 100mg
    Substance name marbofloxacin
    CAS Number 115550-35-1
    Quantitative Yes
    Current batch 4766
    QTY (Max 25)
  • Search result 6

    Category Number 1008
    Pack size 100 mg
    Substance name mebendazole
    CAS Number 31431-39-7
    Quantitative No
    Current batch 4246
    QTY (Max 25)
  • Search result 7

    Category Number 1271
    Pack size 100 mg
    Substance name mebeverine hydrochloride
    CAS Number 2753-45-9
    Quantitative Yes
    Current batch 4521
    QTY (Max 25)
  • Search result 8

    Category Number 1273
    Pack size 1ml
    Substance name mebeverine impurity C
    CAS Number 14367-47-6
    Quantitative No
    Current batch 4562
    QTY (Max 25)
  • Search result 9

    Category Number 1272
    Pack size 25mg
    Substance name mebeverine impurity standard
    CAS Number 2753-45-9
    Quantitative No
    Current batch 4524
    QTY (Max 25)
  • Search result 10

    Category Number 220
    Pack size 100 mg
    Substance name meclozine hydrochloride
    CAS Number 1104-22-9
    Quantitative No
    Current batch 3329
    QTY (Max 25)