186338-89-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 186338-89-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,6,3,3 and 8 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 186338-89:
(8*1)+(7*8)+(6*6)+(5*3)+(4*3)+(3*8)+(2*8)+(1*9)=176
176 % 10 = 6
So 186338-89-6 is a valid CAS Registry Number.
186338-89-6Relevant articles and documents
Synthesis of 4-hydroxy- and 3-acyl-4-amino-2-trifluoromethylpyridines
Vasil'ev,Surzhikov,Azarevich,Bogdanov,Dorokhov
, p. 2574 - 2577 (1996)
Schemes for synthesizing 3-acyl-4-amino(hydroxy)-2-trifluoromethylpyridines from 3-acyl-4-amino-5,5,5-trifluoro-3-penten-2-ones via their diphenylboron chelate complexes have been suggested.