216872-53-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 216872-53-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,6,8,7 and 2 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 216872-53:
(8*2)+(7*1)+(6*6)+(5*8)+(4*7)+(3*2)+(2*5)+(1*3)=146
146 % 10 = 6
So 216872-53-6 is a valid CAS Registry Number.
216872-53-6Relevant articles and documents
First synthesis of L-ascorbic acid (vitamin C) from a non-carbohydrate source
Banwell, Martin,Blakey, Simon,Harfoot, Gwion,Longmore, Robert
, p. 3141 - 3142 (1998)
The enantiopure cis-1,2-dihydrocatechol 2, which is obtained by microbial oxidation of chlorobenzene, has been converted, via 3,5-O-benzylidene-L-gulonolactone (8), into L-ascorbic acid (1).
