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 253
    Pack size 100 mg
    Substance name miconazole nitrate
    CAS Number 22832-87-7
    Quantitative Yes
    Current batch 2398
    QTY (Max 25)
  • Search result 2

    Category Number 722
    Pack size 100 mg
    Substance name midazolam
    CAS Number 59467-70-8
    Quantitative Yes
    Current batch 4539
    QTY (Max 25)
  • Search result 3

    Category Number 394
    Pack size 125 mg
    Substance name minocycline hydrochloride
    CAS Number 13614-98-7
    Quantitative Yes
    Current batch 4464
    QTY (Max 25)
  • Search result 4

    Category Number 637
    Pack size 100 mg
    Substance name minoxidil
    CAS Number 38304-91-5
    Quantitative Yes
    Current batch 4223
    QTY (Max 25)
  • Search result 5

    Category Number 1313
    Pack size 100mg
    Substance name mirabegron
    CAS Number 223673-61-8
    Quantitative Yes
    Current batch 4830
    QTY (Max 25)
  • Search result 6

    Category Number 842
    Pack size 100 mg
    Substance name mirtazapine
    CAS Number 85650-52-8
    Quantitative Yes
    Current batch 3158
    QTY (Max 25)
  • Search result 7

    Category Number 1253
    Pack size 100 mg
    Substance name modafinil
    CAS Number 68693-11-8
    Quantitative Yes
    Current batch 4275
    QTY (Max 25)
  • Search result 8

    Category Number 768
    Pack size 100 mg
    Substance name mometasone furoate
    CAS Number 83919-23-7
    Quantitative Yes
    Current batch 4500
    QTY (Max 25)
  • Search result 9

    Category Number 1283
    Pack size 25 mg
    Substance name mometasone impurity D
    CAS Number 83881-09-8
    Quantitative No
    Current batch 4499
    QTY (Max 25)
  • Search result 10

    Category Number 254
    Pack size 100 mg
    Substance name monosulfiram
    CAS Number 95-05-6
    Quantitative No
    Current batch 3928
    QTY (Max 2)