Nikolic, Kosta published the artcileElectro-analytical determination of some compounds from a group of synthetic local anesthetics, SDS of cas: 637-58-1, the publication is Arhiv za Farmaciju (1977), 27(1), 37-43, database is CAplus.
Amylocaine-HCl [532-59-2], butanilcaine-HCl [6027-28-7], dibucaine-HCl [61-12-1], falicaine [1155-49-3], cornecaine [3686-68-8], pramoxine-HCL [637-58-1], and tetracaine-HCl [136-47-0] in DMSO were determined by conductometric titration with KOH. The standard deviations were 0.2, 0.2, 0.1, 0.3, 0.3, 0.1 and 0.2, reps.
Arhiv za Farmaciju published new progress about 637-58-1. 637-58-1 belongs to ethers-buliding-blocks, auxiliary class Inhibitor, name is 4-(3-(4-Butoxyphenoxy)propyl)morpholine hydrochloride, and the molecular formula is C17H28ClNO3, SDS of cas: 637-58-1.
Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem