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 customs 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 1165
    Pack size 100 mg
    Substance name palmatine chloride
    CAS Number 10605-02-4
    Quantitative Yes
    Current batch 4882
    QTY (Max 25)
  • Search result 2

    Category Number 276
    Pack size 25 mg
    Substance name pancuronium bromide
    CAS Number 15500-66-0
    Quantitative Yes
    Current batch 3863
    QTY (Max 25)
  • Search result 3

    Category Number 1198
    Pack size 25 mg
    Substance name pantoprazole impurity A
    CAS Number 127780-16-9
    Quantitative No
    Current batch 3903
    QTY (Max 25)
  • Search result 4

    Category Number 1197
    Pack size 100 mg
    Substance name pantoprazole sodium
    CAS Number 138786-67-1
    Quantitative Yes
    Current batch 3902
    QTY (Max 25)
  • Search result 5

    Category Number 277
    Pack size 100 mg
    Substance name papaverine hydrochloride
    CAS Number 61-25-6
    Quantitative Yes
    Current batch 2715
    QTY (Max 25)
  • Search result 6

    Category Number 371
    Pack size 100 mg
    Substance name paracetamol
    CAS Number 103-90-2
    Quantitative Yes
    Current batch 4436
    QTY (Max 25)
  • Search result 7

    Category Number 1024
    Pack size 200 mg
    Substance name paroxetine hydrochloride hemihydrate
    CAS Number 110429-35-1
    Quantitative Yes
    Current batch 3241
    QTY (Max 25)
  • Search result 8

    Category Number 746
    Pack size 25 mg
    Substance name paroxetine impurity standard
    CAS Number 110429-35-1
    Quantitative No
    Current batch 4468
    QTY (Max 25)
  • Search result 9

    Category Number 278
    Pack size 5 mg
    Substance name pentagastrin
    CAS Number 5534-95-2
    Quantitative No
    Current batch 3204
    QTY (Max 25)
  • Search result 10

    Category Number 1073
    Pack size 100 mg
    Substance name perindopril erbumine
    CAS Number 107133-36-8
    Quantitative Yes
    Current batch 4167
    QTY (Max 25)
  • Search result 11

    Category Number 1074
    Pack size 25 mg
    Substance name perindopril impurity standard
    CAS Number 107133-36-8
    Quantitative No
    Current batch 3444
    QTY (Max 25)
  • Search result 12

    Category Number 422
    Pack size 100 mg
    Substance name perphenazine
    CAS Number 58-39-9
    Quantitative Yes
    Current batch 2627
    Discontinued
  • Search result 13

    Category Number 683
    Pack size 100 mg
    Substance name pethidine hydrochloride
    CAS Number 50-13-5
    Quantitative Yes
    Current batch 4390
    QTY (Max 5)
  • Search result 14

    Category Number 1166
    Pack size 100 mg
    Substance name phenelzine sulfate
    CAS Number 156-51-4
    Quantitative Yes
    Current batch 4704
    QTY (Max 25)
  • Search result 15

    Category Number 1208
    Pack size 100 mg
    Substance name phenindione
    CAS Number 83-12-5
    Quantitative Yes
    Current batch 3962
    QTY (Max 25)
  • Search result 16

    Category Number 1209
    Pack size 25 mg
    Substance name phenindione impurity 1
    CAS Number 3761-46-4
    Quantitative No
    Current batch 4118
    QTY (Max 25)
  • Search result 17

    Category Number 901
    Pack size 100 mg
    Substance name phenobarbital
    CAS Number 50-06-6
    Quantitative Yes
    Current batch 3224
    QTY (Max 25)
  • Search result 18

    Category Number 1072
    Pack size 100 mg
    Substance name phenoxybenzamine hydrochloride
    CAS Number 63-92-3
    Quantitative Yes
    Current batch 3399
    QTY (Max 25)
  • Search result 19

    Category Number 282
    Pack size 500 mg
    Substance name phenoxymethylpenicillin potassium
    CAS Number 132-98-9
    Quantitative Yes
    Current batch 3113
    QTY (Max 2)
  • Search result 20

    Category Number 1099
    Pack size 25 mg
    Substance name phentolamine impurity standard
    CAS Number 65-28-1
    Quantitative No
    Current batch 3672
    QTY (Max 25)