208838-21-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 208838-21-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,8,8,3 and 8 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 208838-21:
(8*2)+(7*0)+(6*8)+(5*8)+(4*3)+(3*8)+(2*2)+(1*1)=145
145 % 10 = 5
So 208838-21-5 is a valid CAS Registry Number.
208838-21-5Relevant articles and documents
Optically active acylsilanes. Synthesis of selected 2,3-O-isopropylidene-1-(trialkyl/arylsilyl)glyceraldehyde derivatives
Raubo,Wicha
, p. 577 - 586 (1995)
Syntheses of 1-trimethylsilyl-, 1-tert-butyldimethylsilyl, 1-dimethylphenylsilyl- and 1-triphenylsilyl-2,3-O-isopropylideneglyceraldehyde derivatives, 6a, 6b, 6c, and 6d, respectively, is described.