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217442-54-1

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217442-54-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 217442-54-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,7,4,4 and 2 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 217442-54:
(8*2)+(7*1)+(6*7)+(5*4)+(4*4)+(3*2)+(2*5)+(1*4)=121
121 % 10 = 1
So 217442-54-1 is a valid CAS Registry Number.

217442-54-1Downstream Products

217442-54-1Relevant articles and documents

A short and facile synthetic route to prenylated flavones. Cyclodehydrogenation of prenylated 2'-hydroxychalcones by a hypervalent iodine reagent

Gulacsi, Katalin,Litkei, Gyoergy,Antus, Sandor,Gunda, Tamas E.

, p. 13867 - 13876 (2007/10/03)

The first synthesis of the prenylated flavones kanzonol-D (1), -E (3) and yinyanghuo-C (4) was accomplished by cyclodehydrogenation of the appropriately substituted 2'-hydroxychalcones 16, 14 and 11, respectively, in presence of phenyl-iodine(III) diaceta

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