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268557-53-5

268557-53-5

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268557-53-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 268557-53-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,6,8,5,5 and 7 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 268557-53:
(8*2)+(7*6)+(6*8)+(5*5)+(4*5)+(3*7)+(2*5)+(1*3)=185
185 % 10 = 5
So 268557-53-5 is a valid CAS Registry Number.

268557-53-5Relevant articles and documents

Synthesis of the key intermediate, diethyl 2-acetylamino-2-(2-(4- octanoylphenyl)ethyl)propane-1,3-dioate, of the immunomodulatory agent FTY720 (fingolimod)

Matsumoto, Norimasa,Hirose, Ryoji,Sasaki, Shigeo,Fujita, Tetsuro

experimental part, p. 595 - 597 (2009/04/11)

The key intermediate, diethyl 2-acetylamino-2-(2-(4-octanoylphenyl)ethyl) propane-1,3-dioate (13), for the immunomodulatory agent FTY720 (2: fingolimod) was synthesized via Michael addition of diethyl(acetylamino) malonate (6) to 4-octanoylstyrene (12).

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