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159216-65-6

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159216-65-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 159216-65-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,9,2,1 and 6 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 159216-65:
(8*1)+(7*5)+(6*9)+(5*2)+(4*1)+(3*6)+(2*6)+(1*5)=146
146 % 10 = 6
So 159216-65-6 is a valid CAS Registry Number.

159216-65-6Relevant articles and documents

FeCl3·6H2O/acetaldehyde, a versatile system for the deprotection of ketals and acetals via a transacetalization process

Schiavo, Lucie,Jeanmart, Lo?c,Lanners, Steve,Choppin, Sabine,Hanquet, Gilles

, p. 1421 - 1424 (2017)

Mild and efficient catalytic deprotection of ketals/acetals mediated by FeCl3·6H2O/acetaldehyde has been described in this paper. The versatility and high chemoselectivity of the iron(iii)/aldehyde system are demonstrated by a large scope of examples. Deprotected ketones/aldehydes are nearly quantitatively isolated after filtration over a pad of silica gel followed by evaporation of volatile by-products.

Improvements in the synthesis of adamantane-2,6-dione and preparation of the novel adamantane-2,6-dione mono-ketal

Ayres, Fred D.

, p. 7151 - 7154 (2007/10/02)

A facile seven-step synthesis of adamantane-2,6-dione is presented that involves minimal purification, provides multigram quantities of product, and proceeds in an overall yield of 21%. The mono-ketal of adamantane-2,6-dione is obtained in 18% overall yield.

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