144895-55-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 144895-55-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,4,8,9 and 5 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 144895-55:
(8*1)+(7*4)+(6*4)+(5*8)+(4*9)+(3*5)+(2*5)+(1*5)=166
166 % 10 = 6
So 144895-55-6 is a valid CAS Registry Number.
144895-55-6Relevant articles and documents
Synthesis of Derivatives of FK 506 and FR 900520: Modifications at the Binding Domain
Emmer, Gerhard,Weber-Roth, Sabine
, p. 5861 - 5874 (1992)
The synthesis of 9-deoxo-FK 506 (13a), 9-deoxo-FR 900520 (13b), 9-deoxo-10(R)-deoxy-FR900520 (14) and its 10(S) isomer 15 is described.Radical deoxygenation/elimination of the 9-dihydro-9,10-thiocarbonates 5a,5b,6a and 6b gave the 9,10 unsaturated compoun
