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 1243
    Pack size 25 mg
    Substance name rotigotine impurity standard
    CAS Number 99755-59-6
    Quantitative No
    Current batch 4197
    QTY (Max 25)
  • Search result 2

    Category Number 451
    Pack size 100 mg
    Substance name salbutamol
    CAS Number 18559-94-9
    Quantitative Yes
    Current batch 4220
    QTY (Max 25)
  • Search result 3

    Category Number 712
    Pack size 25 mg
    Substance name salbutamol aldehyde impurity
    CAS Number 156339-88-7
    Quantitative No
    Current batch 3022
    Discontinued
  • Search result 4

    Category Number 852
    Pack size 10 mg
    Substance name salbutamol impurity B
    CAS Number 96948-64-0
    Quantitative No
    Current batch 4892
    QTY (Max 25)
  • Search result 5

    Category Number 1308
    Pack size 10mg
    Substance name salbutamol impurity Q
    CAS Number 54030-32-9
    Quantitative No
    Current batch 4780
    QTY (Max 10)
  • Search result 6

    Category Number 1309
    Pack size 10mg
    Substance name salbutamol impurity standard
    CAS Number 51022-70-9
    Quantitative No
    Current batch 4793
    QTY (Max 10)
  • Search result 7

    Category Number 704
    Pack size 25 mg
    Substance name salbutamol ketone impurity
    CAS Number 156547-62-5
    Quantitative No
    Current batch 4373
    QTY (Max 25)
  • Search result 8

    Category Number 302
    Pack size 100 mg
    Substance name salbutamol sulfate
    CAS Number 51022-70-9
    Quantitative Yes
    Current batch 4317
    QTY (Max 25)
  • Search result 9

    Category Number 775
    Pack size 100 mg
    Substance name salicylic acid
    CAS Number 69-72-7
    Quantitative Yes
    Current batch 2821
    QTY (Max 25)
  • Search result 10

    Category Number 1181
    Pack size 100 mg
    Substance name salmeterol xinafoate
    CAS Number 94749-08-3
    Quantitative Yes
    Current batch 4003
    QTY (Max 25)
  • Search result 11

    Category Number 1182
    Pack size 25 mg
    Substance name salmeterol xinafoate impurity 1
    CAS Number 1330076-52-2
    Quantitative No
    Current batch 4015
    QTY (Max 25)
  • Search result 12

    Category Number 1133
    Pack size 100 mg
    Substance name santonin
    CAS Number 481-06-1
    Quantitative Yes
    Current batch 3664
    QTY (Max 25)
  • Search result 13

    Category Number 0
    Pack size 100 mg
    Substance name santonin
    CAS Number 481-06-1
    Quantitative Yes
    Current batch 3664
    Discontinued
  • Search result 14

    Category Number 705
    Pack size 100 mg
    Substance name selegiline hydrochloride
    CAS Number 14611-52-0
    Quantitative Yes
    Current batch 2374
    QTY (Max 2)
  • Search result 15

    Category Number 898
    Pack size 20 mg
    Substance name sertraline cis isomer
    CAS Number 79617-96-2
    Quantitative No
    Current batch 3364
    Discontinued
  • Search result 16

    Category Number 883
    Pack size 100 mg
    Substance name sertraline hydrochloride
    CAS Number 79559-97-0
    Quantitative Yes
    Current batch 3178
    QTY (Max 25)
  • Search result 17

    Category Number 897
    Pack size 20 mg
    Substance name sertraline hydrochloride impurity standard
    CAS Number Not applicable
    Quantitative No
    Current batch 4005
    QTY (Max 25)
  • Search result 18

    Category Number 739
    Pack size 100 mg
    Substance name simvastatin
    CAS Number 79902-63-9
    Quantitative Yes
    Current batch 2560
    QTY (Max 25)
  • Search result 19

    Category Number 830
    Pack size 100 mg
    Substance name sodium alendronate
    CAS Number 121268-17-5
    Quantitative Yes
    Current batch 3094
    QTY (Max 1)
  • Search result 20

    Category Number 750
    Pack size 1
    Substance name sodium alginate
    CAS Number 9005-38-3
    Quantitative Not applicable
    Current batch
    Discontinued
  • Search result 21

    Category Number 453
    Pack size 200 mg
    Substance name sodium nitroprusside
    CAS Number 13755-38-9
    Quantitative Yes
    Current batch 1599
    QTY (Max 25)
  • Search result 22

    Category Number 490
    Pack size 100 mg
    Substance name sodium picosulfate
    CAS Number 10040-45-6
    Quantitative Yes
    Current batch 4631
    QTY (Max 25)
  • Search result 23

    Category Number 452
    Pack size 500 mg
    Substance name sodium valproate
    CAS Number 1069-66-5
    Quantitative Yes
    Current batch 4170
    QTY (Max 25)
  • Search result 24

    Category Number 1281
    Pack size 100 mg
    Substance name solifenacin succinate
    CAS Number 242478-38-2
    Quantitative Yes
    Current batch 4527
    QTY (Max 25)
  • Search result 25

    Category Number 1282
    Pack size 25 mg
    Substance name solifenacin succinate impurity standard
    CAS Number 242478-38-2
    Quantitative No
    Current batch 4509
    QTY (Max 25)
  • Search result 26

    Category Number 498
    Pack size 100 mg
    Substance name sotalol hydrochloride
    CAS Number 959-24-0
    Quantitative No
    Current batch 2517
    QTY (Max 25)
  • Search result 27

    Category Number 306
    Pack size 150 mg
    Substance name spironolactone
    CAS Number 52-01-7
    Quantitative No
    Current batch 4356
    QTY (Max 25)
  • Search result 28

    Category Number 818
    Pack size 1000 mg
    Substance name sucrose
    CAS Number 57-50-1
    Quantitative Yes
    Current batch 4278
    QTY (Max 25)
  • Search result 29

    Category Number 312
    Pack size 100 mg
    Substance name sulfadiazine
    CAS Number 68-35-9
    Quantitative Yes
    Current batch 2431
    QTY (Max 25)
  • Search result 30

    Category Number 310
    Pack size 100 mg
    Substance name sulfadoxine
    CAS Number 2447-57-6
    Quantitative Yes
    Current batch 2429
    Discontinued
  • Search result 31

    Category Number 314
    Pack size 100 mg
    Substance name sulfamethoxazole
    CAS Number 723-46-6
    Quantitative Yes
    Current batch 3454
    QTY (Max 25)
  • Search result 32

    Category Number 1039
    Pack size 25 mg
    Substance name sulfapyridine
    CAS Number 144-83-2
    Quantitative No
    Current batch 3351
    QTY (Max 10)
  • Search result 33

    Category Number 779
    Pack size 250 mg
    Substance name sulfasalazine
    CAS Number 599-79-1
    Quantitative Yes
    Current batch 2827
    QTY (Max 25)
  • Search result 34

    Category Number 1041
    Pack size 50 mg
    Substance name sulindac
    CAS Number 38194-50-2
    Quantitative No
    Current batch 4933
    QTY (Max 25)
  • Search result 35

    Category Number 679
    Pack size 100 mg
    Substance name sulpiride
    CAS Number 15676-16-1
    Quantitative Yes
    Current batch 3966
    QTY (Max 25)
  • Search result 36

    Category Number 745
    Pack size 25 mg
    Substance name sumatriptan impurity standard
    CAS Number 103628-48-4
    Quantitative No
    Current batch 2791
    Discontinued
  • Search result 37

    Category Number 950
    Pack size 100 mg
    Substance name sumatriptan succinate
    CAS Number 103628-48-4
    Quantitative Yes
    Current batch 3300
    QTY (Max 25)
  • Search result 38

    Category Number 1225
    Pack size 100 mg
    Substance name tamoxifen citrate
    CAS Number 54965-24-1
    Quantitative Yes
    Current batch 4097
    QTY (Max 25)
  • Search result 39

    Category Number 876
    Pack size 100 mg
    Substance name tamsulosin hydrochloride
    CAS Number 106463-17-6
    Quantitative Yes
    Current batch 4474
    QTY (Max 25)
  • Search result 40

    Category Number 877
    Pack size 25 mg
    Substance name tamsulosin hydrochloride impurity standard
    CAS Number Not applicable
    Quantitative No
    Current batch 4531
    QTY (Max 25)