75445-33-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 75445-33-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,4,4 and 5 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 75445-33:
(7*7)+(6*5)+(5*4)+(4*4)+(3*5)+(2*3)+(1*3)=139
139 % 10 = 9
So 75445-33-9 is a valid CAS Registry Number.
75445-33-9Relevant articles and documents
Note on a Simple Synthesis of (+/-)-threo-2-Amino-1-phenyl-1,3-propanediole
Schoellkopf, Ulrich,Scheunemann, Karl-Heinz
, p. 1348 - 1349 (2007/10/02)
A synthesis of the title compound starting from methyl trans-5-phenyl-2-oxazoline-4-carboxylate (3) is described.