Microneedle compositions and methods of delivery using the same was written by Artzi, Natalie; Dosta, Pere; Puigmal, Nuria. And the patent was published on September 1,2022.SDS of cas: 550-33-4 The following contents are mentioned in the patent:
The present disclosure describes microneedle array compositions comprising a plurality of microneedles projecting from a substrate. Each microneedle of the plurality of microneedles comprise a penetrating tip and a base that is integrally connected with the substrate, wherein each microneedle of the plurality of microneedles is a porous microneedle composed of a degradable hyaluronic acid polymer comprising a disulfide bond. This study involved multiple reactions and reactants, such as (2R,3S,4R,5R)-2-(Hydroxymethyl)-5-(9H-purin-9-yl)tetrahydrofuran-3,4-diol (cas: 550-33-4SDS of cas: 550-33-4).
(2R,3S,4R,5R)-2-(Hydroxymethyl)-5-(9H-purin-9-yl)tetrahydrofuran-3,4-diol (cas: 550-33-4) belongs to tetrahydrofuran derivatives. Tetrahydrofuran (THF) is a Lewis base that bonds to a variety of Lewis acids such as I2, phenols, triethylaluminum and bis(hexafluoroacetylacetonato)copper(II). Oxidations have also proved to be valuable and efficient approaches to chiral tetrahydrofuran derivatives.SDS of cas: 550-33-4
Referemce:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem