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133620-92-5

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133620-92-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 133620-92-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,6,2 and 0 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 133620-92:
(8*1)+(7*3)+(6*3)+(5*6)+(4*2)+(3*0)+(2*9)+(1*2)=105
105 % 10 = 5
So 133620-92-5 is a valid CAS Registry Number.

133620-92-5Relevant articles and documents

[3+3] Annulation by sequential two electron and one electron allylation

Ward, Dale E.,Kaller, Brian F.

, p. 843 - 846 (1991)

3-phenylthio-2-(trimethylsilymethyl)propene is a convenient conjunctive reagent for the preparation of methylenecyclohexanes via a [3+3] annulation. The trimethylsilyl group facilitates the Lewis acid catalyzed allylation of an aldehyde or acetal while the phenylthio group directs a 6-endo-trig radical cyclization reaction.

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