77697-13-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77697-13-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,6,9 and 7 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 77697-13:
(7*7)+(6*7)+(5*6)+(4*9)+(3*7)+(2*1)+(1*3)=183
183 % 10 = 3
So 77697-13-3 is a valid CAS Registry Number.
77697-13-3Relevant articles and documents
Efficient Synthesis of (R)-(-)-γ-Benzyloxymethyl-γ-butyrolactone from (D)-(+)-Mannitol
Takano, Seiichi,Goto, Emiko,Hirama, Michiyasu,Ogasawara, Kunio
, p. 381 - 385 (2007/10/02)
Efficient synthesis of (R)-(-)-γ-benzyloxymethyl-γ-butyrolactone (10) has been developed using (D)-(+)-mannitol (1) as starting material.