Certificate of analysis — by lot number
Every lot of a CATO reference standard is certified individually. Enter the numbers printed on the vial label or on your packing list and the certificate for that batch opens directly — no account, no login, no waiting for a reply.
Not sure which number is which? The catalogue number is on the vial label and starts with C (for example C4X-105766); the lot number is printed after the words ‘Lot’ or ‘Batch’. If the certificate does not open, email chao.lu@cato-chem.com with both numbers and we will send the document for that batch.
What the certificate states
- Catalogue and lot number, so the document matches the vial you received.
- The value assigned to the material for that batch and the analytical basis for it.
- Storage and shipping conditions for the item.
Safety data sheets are available for every catalogue item; see Quality and documentation or ask us for the SDS of a specific item.
Need a quote for a new batch or a different pack size?
Send the compound and the quantity — we answer with availability, lead time and documents.