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Technical & commercial enquiries: [email protected] Certificate of analysis issued per lot · Worldwide shipping

About RSSE

RSSE exists for one reason: the compound a method needs should not be the reason a method is delayed.

Who we are

Guangzhou RSSE Chem Co., Ltd. is a reference standard producer based in Guangzhou, People's Republic of China. Standards are made and characterised in house, and the certificate that travels with your lot is issued by us.

Building A, Guangzhou International Biotech Innovation Center, No. 88 Science Avenue, Huangpu District
Guangzhou 510663, Guangdong, People's Republic of China

What we supply

Pharmacopoeial impurities and related substances, non-compendial impurities and degradation products, drug metabolites, nitrosamine and other genotoxic impurities, stable isotope-labelled analogues (D, 13C, 15N), and the reference materials used in food, environmental and agrochemical analysis.

How we work

Every enquiry is answered by a technical contact rather than a ticket queue. Compounds that no catalogue lists can be quoted from a structure โ€” a CAS number is optional, and many of them do not have one. Characterisation data travels with the batch, and a certificate of analysis is issued for the lot you receive.

What we do not do

We do not publish prices: quotations are prepared per enquiry, against the pack size, the quantity and the destination. We do not claim accreditation or certification that we cannot evidence on request. We do not supply material for human or veterinary use โ€” all products are for laboratory and research use only.

Contact

Technical and commercial enquiries: [email protected]
Documentation and certificate queries: [email protected]

We answer in English. Other languages on request.