29167-36-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 29167-36-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,9,1,6 and 7 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 29167-36:
(7*2)+(6*9)+(5*1)+(4*6)+(3*7)+(2*3)+(1*6)=130
130 % 10 = 0
So 29167-36-0 is a valid CAS Registry Number.
29167-36-0Relevant academic research and scientific papers
A facile preparation of 2- and 5-substituted 3-bromothiophenes
Masquelin,Obrecht
, p. 9387 - 9390 (2007/10/02)
Acetylenic ketones of type 4 and acetylenic acetals of type 6 (Scheme 1) are excellent cyclization precursors for the acid-catalyzed synthesis of various heterocycles. Using this methodology, 5- and 2-substituted 3-bromothiophenes of types 7 and 8 have be
