Questions before an order

A gram-scale sample is the normal first order and is quoted against the same specification as the kilo lot. There is no catalogue minimum above that; the quantity on the entry is the standard packing, not a floor.

Each lot is analysed before release. Identity is confirmed by NMR and MS, and assay is measured by GC or HPLC depending on the compound. The value on the certificate is the value for that lot, not a catalogue minimum.

Yes. Roughly half of the work is on non-catalogue compounds. Send the structure and the quantity; a route review comes back with the step count and the likely purification burden before any price is discussed.

The packing stated on the entry is what is normally held. Different unit weights, split shipments and customer-supplied containers are quotation items, and the packing is confirmed in writing before the lot is packed.

A batch-specific certificate of analysis, a safety data sheet in GHS format and a specification sheet suitable for incoming inspection. Impurity profiles and raw data are available on request.

A catalogue item is quoted within one business day. A custom route takes longer because the answer depends on a chemist reviewing the sequence rather than on a stock level; two to five working days is typical for a first response.

Where an entry is a defined geometric isomer, the isomeric ratio is part of the release specification and is stated on the certificate. If your route needs a tighter ratio than the catalogue entry, say so in the inquiry.

Yes. Shipments are quoted with the destination and the Incoterm in view, and the paperwork that the destination requires is confirmed before dispatch rather than after.

Unless the entry says otherwise, keep the container closed, dry and out of direct light. Alkynes and aldehydes are typically held cool under inert gas; the storage line on the certificate takes precedence over any general rule.

For repeated use of the same entry, a reserve can be agreed so that the packed lot is released in scheduled instalments. The reserve is quoted per entry and per quantity rather than as a general programme.

Items held in stock ship within days of the order being confirmed. Items made to order are typically two to four weeks, depending on the step count and the analytical work needed before release.

No. Everything here is supplied for laboratory, research and industrial use by qualified personnel. Compounds are not offered as drugs, cosmetics, food additives, pesticides or household products.

Usually yes, and it is the normal way a repeat order is set up. The tighter limits are written into the lot specification and the lot is qualified against them before it is released, so the certificate reflects your limits rather than ours.

Search by CAS number, compound name or molecular formula. The index is also grouped by functional group, which is usually the faster route when the structure is known but the name is not.