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.
30/06/2025
Dear valued customer,
We are writing to let you know that, due to an electrical fault, our freezers in which some BPCRS vial stock was stored switched off for a short period and the storage temperature may have been compromised over the weekend of 21st/22nd June. This was detected promptly and rectified, but as a precaution we have removed all affected items from sale and are conducting thorough testing to verify their stability and usability.
Consequently, you may notice in the short term that a higher number of products than usual are showing as “out of stock”. This process is necessary to ensure that only products that meet our quality standards are shipped to you.
We sincerely apologise for any inconvenience and appreciate your patience and understanding, and would like to reassure you that;
· None of the affected vials have been shipped to customers.
· All affected vials have been quarantined.
· We are urgently reviewing the material stability data and carrying out testing to determine if the material has been affected.
· We have additional bulk supplies of the materials which have not been affected and we can produce more vials from these bulks.
Products will be brought back into stock as soon as we can confirm they have not been affected. As we assess the products and gather more data we will be able to update with estimated timeframes in due course. As soon as we have further information we will update this page.
Update 18/07/25
We are pleased to update that over the last three weeks we have made the following products available for sale, following their temporary withdrawal resulting from an electrical fault affecting freezers.
This follows a detailed quality assessment of some of our vialled stock and re-vialing product from our reserved bulk supplies:
CAT 26 (azathioprine), CAT 108 (dexamethasone sodium phosphate), CAT 341 (3,5,6-trichloro-2-hydroxybenzoic acid), CAT 362 (naftidrofuryl oxalate), CAT 400 (rifampicin N-oxide), CAT 640 (N,N'-bis(2,4-xylyl)formamidine), CAT 641 (N-methyl-N'-(2,4-xylyl)formamidine), CAT 654 (famotidine impurity C), CAT 704 (salbutamol ketone impurity), CAT 781 (erythromycin), CAT 789 (demeclocycline hydrochloride), CAT 791 (delta-3-cefaclor), CAT 876 (tamsulosin hydrochloride), CAT 894 (budesonide impurity standard), CAT 1027 (piperacillin), CAT 1030 (pravastatin impurity A), CAT 1106 (nicorandil amide), CAT 1150 (colchicine), CAT 1165 (palmatine chloride), CAT 1167 (vecuronium bromide), CAT 1193 (quinapril hydrochloride).
We are continuing to review all remaining affected products, with further products expected to be made available next week, and most affected items expected to be made available by the end of July.
We would like to thank you again for your patience while we have worked to resolve this matter.