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148758-55-8

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148758-55-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 148758-55-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,8,7,5 and 8 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 148758-55:
(8*1)+(7*4)+(6*8)+(5*7)+(4*5)+(3*8)+(2*5)+(1*5)=178
178 % 10 = 8
So 148758-55-8 is a valid CAS Registry Number.

148758-55-8Relevant articles and documents

RING TRANSFORMATIONS OF HETEROCYCLES. 2. RING CONTRACTION OF 5,6-DIHYDRO-4H-1,2,4,5-OXATRIAZINES INTO 1H-1,2,4-TRIAZOLES

El-Abadelah, Mustafa M.,Hussein, Ahmad Q.,Nazer, Musa Z.,Musa, Osama M.,Rademacher, Paul,Bandmann, Heinz

, p. 455 - 472 (2007/10/02)

6-Monosubstituted 5,6-dihydro-4H-1,2,4,5-oxatriazines (3) undergo ring contraction, via elimination of H2O, to yield the respective 1H-1,2,4-triazoles (4).This transformation is envisaged to proceed via the ring-opened (E)-hydrazonoxime (5) which then suf

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