1367887-21-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1367887-21-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,6,7,8,8 and 7 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1367887-21:
(9*1)+(8*3)+(7*6)+(6*7)+(5*8)+(4*8)+(3*7)+(2*2)+(1*1)=215
215 % 10 = 5
So 1367887-21-5 is a valid CAS Registry Number.
1367887-21-5Relevant articles and documents
Synthesis of L-phenylalanine ester derivatives of p-tert-butylcalix[8]arene
Huang,Yin,Wu
experimental part, p. 931 - 932 (2012/07/28)
Synthetic routes were developed to link L-phenylalanine ester at the lower rim of p-tert-butylcalix[8]arene. Amide-type halides (2a-c) were synthesized by chloroacetic chloride and L-phenylalanine ester hydrochloride (1a-c), then reacted with p-tert-butyl
