Reference Standards

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.

Search within this catalogue

951 items

  • Search result 1

    Category Number 646
    Pack size 100 mg
    Substance name dexamethasone phosphate
    CAS Number 312-93-6
    Quantitative Yes
    Current batch 3634
    Discontinued

  • Search result 2

    Category Number 108
    Pack size 100 mg
    Substance name dexamethasone sodium phosphate
    CAS Number 2392-39-4
    Quantitative Yes
    Current batch 4205
    QTY (Max 25)

  • Search result 3

    Category Number 465
    Pack size 100 mg
    Substance name dextropropoxyphene hydrochloride
    CAS Number 1639-60-7
    Quantitative Yes
    Current batch 2246
    QTY (Max 5)

  • Search result 4

    Category Number 549
    Pack size 200 mg
    Substance name diacetylfluorescein
    CAS Number 596-09-8
    Quantitative Yes
    Current batch 3997
    QTY (Max 1)

  • Search result 5

    Category Number 887
    Pack size 150 mg
    Substance name diamorphine hydrochloride
    CAS Number 1502-95-0
    Quantitative Yes
    Current batch 3174
    QTY (Max 25)

  • Search result 6

    Category Number 111
    Pack size 100 mg
    Substance name diazepam
    CAS Number 439-14-5
    Quantitative No
    Current batch 4587
    QTY (Max 5)

  • Search result 7

    Category Number 858
    Pack size 100 mg
    Substance name dibenzosuberone
    CAS Number 1210-35-1
    Quantitative No
    Current batch 3006
    QTY (Max 25)

  • Search result 8

    Category Number 114
    Pack size 25 mg
    Substance name dibenzo[b,e]thiepin-11(6H)-one
    CAS Number 1531-77-7
    Quantitative No
    Current batch 3040
    QTY (Max 25)

  • Search result 9

    Category Number 116
    Pack size 100 mg
    Substance name dichlorophen
    CAS Number 97-23-4
    Quantitative Yes
    Current batch 1661
    Discontinued

  • Search result 10

    Category Number 420
    Pack size 100 mg
    Substance name dichlorophen impurity standard
    CAS Number Not applicable
    Quantitative Yes
    Current batch 1858
    QTY (Max 25)

  • Search result 11

    Category Number 598
    Pack size 100 mg
    Substance name diclofenac diethylamine
    CAS Number 78213-16-8
    Quantitative No
    Current batch 4399
    QTY (Max 25)

  • Search result 12

    Category Number 828
    Pack size 25 mg
    Substance name diclofenac impurity A
    CAS Number 15362-40-0
    Quantitative No
    Current batch 3918
    QTY (Max 10)

  • Search result 13

    Category Number 619
    Pack size 100 mg
    Substance name diclofenac sodium
    CAS Number 15307-79-6
    Quantitative Yes
    Current batch 4601
    QTY (Max 25)

  • Search result 14

    Category Number 810
    Pack size 250 mg
    Substance name dicloxacillin sodium
    CAS Number 13412-64-1
    Quantitative No
    Current batch 3428
    QTY (Max 25)

  • Search result 15

    Category Number 989
    Pack size 100 mg
    Substance name dicycloverine hydrochloride
    CAS Number 67-92-5
    Quantitative No
    Current batch 3452
    QTY (Max 25)

  • Search result 16

    Category Number 118
    Pack size 100 mg
    Substance name diethanolamine fusidate
    CAS Number 16391-75-6
    Quantitative Yes
    Current batch 4732
    QTY (Max 10)

  • Search result 17

    Category Number 119
    Pack size 50 mg
    Substance name diethyl-4-decyloxy-3-ethoxyanilino-methylenemalonate
    CAS Number 26692-07-9
    Quantitative No
    Current batch 811
    QTY (Max 1)

  • Search result 18

    Category Number 737
    Pack size 100 mg
    Substance name diethylcarbamazine citrate
    CAS Number 1642-54-2
    Quantitative Yes
    Current batch 2571
    QTY (Max 25)

  • Search result 19

    Category Number 859
    Pack size 100 mg
    Substance name diethylstilbestrol
    CAS Number 56-53-1
    Quantitative Yes
    Current batch 3019
    QTY (Max 25)

  • Search result 20

    Category Number 677
    Pack size 25 mg
    Substance name diethylstilbestrol monophosphate
    CAS Number Not applicable
    Quantitative No
    Current batch 2253
    Discontinued

  • Search result 21

    Category Number 401
    Pack size 100 mg
    Substance name diflucortolone valerate
    CAS Number 59198-70-8
    Quantitative Yes
    Current batch 3496
    QTY (Max 25)

  • Search result 22

    Category Number 397
    Pack size 25 mg
    Substance name diflucortolone valerate impurity standard
    CAS Number Not applicable
    Quantitative No
    Current batch 1886
    Discontinued

  • Search result 23

    Category Number 855
    Pack size 250 mg
    Substance name digitoxin
    CAS Number 71-63-6
    Quantitative Yes
    Current batch 3913
    QTY (Max 25)

  • Search result 24

    Category Number 431
    Pack size 100 mg
    Substance name dihydrocodeine tartrate
    CAS Number 5965-13-9
    Quantitative Yes
    Current batch 4425
    QTY (Max 25)

  • Search result 25

    Category Number 120
    Pack size 25 mg
    Substance name dihydroergocristine mesilate
    CAS Number 24730-10-7
    Quantitative No
    Current batch 2620
    Discontinued