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508193-63-3

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508193-63-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 508193-63-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,8,1,9 and 3 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 508193-63:
(8*5)+(7*0)+(6*8)+(5*1)+(4*9)+(3*3)+(2*6)+(1*3)=153
153 % 10 = 3
So 508193-63-3 is a valid CAS Registry Number.

508193-63-3Relevant articles and documents

Double dehydration of a diynediol promoted by a single Co2(CO)6 unit; activation of an uncoordinated propargylic centrey

Golovko, Vladimir B.,Mays, Martin J.,Woods, Anthony D.

, p. 1706 - 1708 (2007/10/03)

The acid-catalysed elimination of two molecules of water from a diynediol requires only one of the alkyne functionalities to be coordinated to a dicobalt hexacarbonyl fragment; it is proposed that the reaction proceeds via an unprecedented type of intermediate in which a carbocationic centre is stabilised by a non-adjacent dicobalt hexacarbonyl moiety.

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