649723-25-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 649723-25-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,4,9,7,2 and 3 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 649723-25:
(8*6)+(7*4)+(6*9)+(5*7)+(4*2)+(3*3)+(2*2)+(1*5)=191
191 % 10 = 1
So 649723-25-1 is a valid CAS Registry Number.
649723-25-1Relevant articles and documents
Stereoselective synthesis of optically active 3-hydroxy-7,8-dihydro-β- ionol-glucosides
Yamano, Yumiko,Shimizu, Yuka,Ito, Masayoshi
, p. 878 - 882 (2003)
A stereocontrolled synthesis of optically active β-D-glucopyronosides 6a, b and 11a, b was accomplished via the 7,8-saturated alcohols 4a, b, efficiently prepared by an asymmetric transfer hydrogenation of the α,β-acetylenic ketone 1 and subsequent cataly