109553-23-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109553-23-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,5,5 and 3 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 109553-23:
(8*1)+(7*0)+(6*9)+(5*5)+(4*5)+(3*3)+(2*2)+(1*3)=123
123 % 10 = 3
So 109553-23-3 is a valid CAS Registry Number.
109553-23-3Relevant articles and documents
α,α-Difluoro-β-aminodeoxystatine-Containing Renin Inhibitory Peptides
Thaisrivongs, Suvit,Schostarez, Heinrich J.,Pals, Donald T.,Turner, Steve R.
, p. 1837 - 1842 (1987)
The preparations of sodium 4(S)--2,2-difluoro-3(S)- and 3(R)--6-methylheptanoates (7a and 7b) from sodium 4(S)--2,2-difluoro-3(R)- and 3(S)-hydroxy-6-methylheptanoates (1a