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19974-91-5

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19974-91-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 19974-91-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,9,7 and 4 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 19974-91:
(7*1)+(6*9)+(5*9)+(4*7)+(3*4)+(2*9)+(1*1)=165
165 % 10 = 5
So 19974-91-5 is a valid CAS Registry Number.

19974-91-5Downstream Products

19974-91-5Relevant articles and documents

Convenient magnesiation of aromatic and heterocyclic rings bearing a hydroxy group in presence of LiCl

Kopp, Felix,Krasovskiy, Arkady,Knochel, Paul

, p. 2288 - 2289 (2007/10/03)

The reaction of various iodophenols with MeMgCl in presence of LiCl followed by the addition of i-PrMgCl provides the corresponding magnesiated magnesium phenolates as THF soluble reagents; this approach can be extended to heterocyclic compounds bearing a

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