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66516-19-6

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66516-19-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 66516-19-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,5,1 and 6 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 66516-19:
(7*6)+(6*6)+(5*5)+(4*1)+(3*6)+(2*1)+(1*9)=136
136 % 10 = 6
So 66516-19-6 is a valid CAS Registry Number.

66516-19-6Relevant articles and documents

Organocatalytic mitsunobu reactions with 3,5-dinitrobenzoic acid

But, Tracy Yuen Sze,Lu, Jinni,Toy, Patrick H.

supporting information; experimental part, p. 1115 - 1117 (2010/06/19)

A second generation procedure for organocatalytic Mitsunobu reactions using 3,5-dinitrobenzoic acid as the pro-nucleophile has been developed. The increased acidity of this acid compared to 4-nitrobenzoic acid, which was used in the original procedure, allowed for higher isolated yields of the desired products and eliminated formation of undesired acetate byproducts. Georg Thieme Verlag Stuttgart - New York.

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