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93140-94-4

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93140-94-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 93140-94-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,3,1,4 and 0 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 93140-94:
(7*9)+(6*3)+(5*1)+(4*4)+(3*0)+(2*9)+(1*4)=124
124 % 10 = 4
So 93140-94-4 is a valid CAS Registry Number.

93140-94-4Relevant 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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