84939-45-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 84939-45-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,9,3 and 9 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 84939-45:
(7*8)+(6*4)+(5*9)+(4*3)+(3*9)+(2*4)+(1*5)=177
177 % 10 = 7
So 84939-45-7 is a valid CAS Registry Number.
84939-45-7Relevant academic research and scientific papers
SYNTHESIS OF OPTICALLY ACTIVE AZETIDIN-2-ONES FROM L-THREONINE
Yanagisawa, Hiroaki,Ando, Akiko,Shiozaki, Masao,Hiraoka, Tetsuo
, p. 1037 - 1040 (2007/10/02)
3S-(1R-Hydroxyethyl)-4R-phenylsulfonylazetidin-2-one derivative was synthesized from L-threonine in an 8-step process including the novel transformation of the oxirane ring to the azetidin-2-one.
