157891-80-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 157891-80-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,8,9 and 1 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 157891-80:
(8*1)+(7*5)+(6*7)+(5*8)+(4*9)+(3*1)+(2*8)+(1*0)=180
180 % 10 = 0
So 157891-80-0 is a valid CAS Registry Number.
157891-80-0Relevant articles and documents
REACTIONS OF ZINC AND SILICON ENOLATES, DERIVED FROM BIS ETHER WITH ELECTROPHILIC REAGENTS
Shchepin, V. V.,Russkikh, N. Yu.,Desyatkov, D. A.
, p. 249 - 251 (2007/10/02)
Zinc enolate, formed in the reaction between zinc and bis ether, reacts with acyl halides and trimethylchlorosilane, yielding the products of an attack on the oxygen, bis and bis4-(1-t