163811-28-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 163811-28-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,3,8,1 and 1 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 163811-28:
(8*1)+(7*6)+(6*3)+(5*8)+(4*1)+(3*1)+(2*2)+(1*8)=127
127 % 10 = 7
So 163811-28-7 is a valid CAS Registry Number.
163811-28-7Relevant articles and documents
Synthesis of difluoroalkylpyrrolic compounds from (diethylamino)sulfur trifluoride and acylpyrroles
Lan Scott
, p. 2389 - 2392 (1995)
Several difluoroalkylpyrrolic compounds with different functional groups have been synthesized by the reaction of DAST ((diethylamino)sulfur trifluoride) with the corresponding N-H protected acylpyrroles in 68-87% yields. It was found that N-H protection