1H-Pyrazole-3-carboxylic acid, 5-cyclopentyl-, ethyl ester

CAS 521300-19-6, 1H-Pyrazole-3-carboxylic acid, 5-cyclopentyl-, ethyl ester, is a C11H16N2O2 acid supplied in kilogram lots with a batch COA.

Acids of this size usually sit at the end of a route, so the release specification and the packing matter more to the buyer than the reactivity does. The ring constrains the geometry of the fragment, so the entry is bought for the shape it imposes on the rest of the molecule rather than for a single reactive site.

The formula C11H16N2O2 resolves to 11 carbons with 2 oxygens and 2 nitrogens. At 11 carbons the entry is an oil or a low-melting solid, and it is handled at ambient temperature in most steps.

Handling and storage

Keep the container sealed and separate from amines: salt formation on the outside of a badly stored drum is a real handling problem.

Ordering

Standard packing 1kg / 25kg / 100kg. Other unit weights are quoted per lot and confirmed in writing before the material is packed. Nothing on this page should be read as a guaranteed minimum. The number that applies is the one on the certificate for the lot you receive.