1756-21-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1756-21-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,7,5 and 6 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1756-21:
(6*1)+(5*7)+(4*5)+(3*6)+(2*2)+(1*1)=84
84 % 10 = 4
So 1756-21-4 is a valid CAS Registry Number.
1756-21-4Relevant articles and documents
Total synthesis of X hapten, III3 Fuc alpha-nLc4 Cer.
Sato,Ito,Nukada,Nakahara,Ogawa
, p. 197 - 210 (1987)
Total synthesis of O-beta-D-galactopyranosyl-(1----4)-O-[alpha-L- fucopyranosyl- (1----3)]-O-(2-acetamido-2-deoxy-beta-D-glucopyranosyl)-(1----3)-O-beta- D- galactopyranosyl- (1----4)-O-beta-D-glucopyranosyl-(1----1)-2-N-tetracosanoyl-(2S,3R ,4E)- sphinge