1338989-55-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1338989-55-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,3,8,9,8 and 9 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1338989-55:
(9*1)+(8*3)+(7*3)+(6*8)+(5*9)+(4*8)+(3*9)+(2*5)+(1*5)=221
221 % 10 = 1
So 1338989-55-1 is a valid CAS Registry Number.
1338989-55-1Relevant articles and documents
Improved synthesis of C8-C20 segment of pectenotoxin-2
Fujiwara, Kenshu,Suzuki, Yuki,Koseki, Nao,Murata, Shun-Ichi,Murai, Akio,Kawai, Hidetoshi,Suzuki, Takanori
, p. 5589 - 5592 (2011/11/07)
The C8-C20 segment of pectenotoxin-2 was efficiently synthesized in 16% overall yield in 22 steps from l-malic acid via an improved route.
