401-67-2 Usage
Chemical Properties
Light yellow liquid
Check Digit Verification of cas no
The CAS Registry Mumber 401-67-2 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 4,0 and 1 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 401-67:
(5*4)+(4*0)+(3*1)+(2*6)+(1*7)=42
42 % 10 = 2
So 401-67-2 is a valid CAS Registry Number.
InChI:InChI=1/C4H2F4O3/c5-1(6)3(9)11-4(10)2(7)8/h1-2H
401-67-2Relevant articles and documents
Synthesis of 3,3-difluoro-DL-alanine and 3,3-difluoro-DL-alanine precursors
D'Orchymont
, p. 961 - 963 (2007/10/02)
The key intermediate to 3,3-difluoroalanine, 2,2-difluoro-1-ethylthioethylamine hydrobromide (2), was prepared by the Steglich and Weygand procedure. Its conversion to N-benzyloxycarbonyl-2,2-difluoro-1-ethenylethylamine (5) followed by oxidation and subsequent deprotection of the amine afforded the 3,3-difluoroalanine.
