189222-28-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 189222-28-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,2,2 and 2 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 189222-28:
(8*1)+(7*8)+(6*9)+(5*2)+(4*2)+(3*2)+(2*2)+(1*8)=154
154 % 10 = 4
So 189222-28-4 is a valid CAS Registry Number.
189222-28-4Relevant articles and documents
Novel carbocyclic ring closure of hex-5-enopyranosides
Das,Mallet,Sinay
, p. 493 - 496 (2007/10/03)
Retention of configuration at the anomeric carbon atom is observed for a novel rearrangement of carbohydrates. The readily accessible vinyl acetal 1 undergoes a triisobutylaluminum-assisted, stereoselective transposition of an oxygen atom on the ring with