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916243-37-3

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916243-37-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 916243-37-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,6,2,4 and 3 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 916243-37:
(8*9)+(7*1)+(6*6)+(5*2)+(4*4)+(3*3)+(2*3)+(1*7)=163
163 % 10 = 3
So 916243-37-3 is a valid CAS Registry Number.

916243-37-3Relevant articles and documents

Novel and Efficient Synthesis of Deuterium-Labeled Olopatadine-d6

Endoori,Gulipalli, K. Ch.,Bodige,Seelam

, p. 1387 - 1393 (2019/11/03)

A novel and highly efficient synthetic approach has been developed for the synthesis of deuterium-labeled olopatadine-d6 using inexpensive and commercially available dimethyl sulfate-d6 at the stage of alkylation of primary amine intermediate. The proposed synthetic path makes it possible to avoid the use of expensive labeled reagents such as dimethyl amine-d6 used as labeled precursor in the traditional synthetic route. The structure of the obtained olapatadine-d6 has been confirmed by 1H NMR and mass spectral data.

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