261777-42-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 261777-42-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,6,1,7,7 and 7 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 261777-42:
(8*2)+(7*6)+(6*1)+(5*7)+(4*7)+(3*7)+(2*4)+(1*2)=158
158 % 10 = 8
So 261777-42-8 is a valid CAS Registry Number.
261777-42-8Relevant articles and documents
Synthesis of chiral nonracemic 4-trans-substituted pipecolic acid derivatives
Keenan, Terence P.,Yaeger, David,Holt, Dennis A.
, p. 4331 - 4341 (2007/10/03)
The syntheses and resolutions of enantiomerically enriched 4-phenyl, 4- tert-butyl, and 4-isopropyl pipecolic acids are described. Optically active diastereomers were prepared by diastereomeric salt formation with the chiral base, L-tyrosine hydrazide, to
