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84262-75-9

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84262-75-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 84262-75-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,2,6 and 2 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 84262-75:
(7*8)+(6*4)+(5*2)+(4*6)+(3*2)+(2*7)+(1*5)=139
139 % 10 = 9
So 84262-75-9 is a valid CAS Registry Number.

84262-75-9Relevant articles and documents

Domino reaction of 1,3-bis(trimethylsilyloxy)-1,3-dienes with oxalyl chloride: General and stereoselective synthesis of γ-alkylidenebutenolides

Langer, Peter,Schneider, Toni,Stoll, Martin

, p. 3204 - 3214 (2000)

The Lewis acid catalyzed cyclization of oxalyl chloride with 1,3-bis-(trimethylsilyloxy)-1,3-dienes 3, derived from 1,3-dicarbonyl compounds 1, provides a new and general approach for the synthesis of γ-alkylidenebutenolides 4, a pharmacologically and syn

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