18917-24-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 18917-24-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,9,1 and 7 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 18917-24:
(7*1)+(6*8)+(5*9)+(4*1)+(3*7)+(2*2)+(1*4)=133
133 % 10 = 3
So 18917-24-3 is a valid CAS Registry Number.
InChI:InChI=1/C31H39N7O7S/c1-46-12-11-22(36-30(44)24(35-26(39)16-32)14-19-17-34-21-10-6-5-9-20(19)21)29(43)38-25(15-27(40)41)31(45)37-23(28(33)42)13-18-7-3-2-4-8-18/h2-10,17,22-25,34H,11-16,32H2,1H3,(H2,33,42)(H,35,39)(H,36,44)(H,37,45)(H,38,43)(H,40,41)/t22-,23-,24-,25-/m0/s1
18917-24-3Relevant articles and documents
A Gradative Deprotection Strategy for the Solid-Phase Synthesis of Peptide Amides Using p-(Acyloxy)benzhydrylamine Resin and the SN2 Deprotection Method
Tam, James P.
, p. 5291 - 5298 (1985)
An efficient deprotection strategy for the preparation of peptide amides by solid-phase peptide synthesis is described.The new method, gradative deprotection approach, utilized a multidetachable benzhydrylamine resin, p-(acyloxy)benzhydrylamine resin, and
