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50816-34-7

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50816-34-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 50816-34-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,0,8,1 and 6 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 50816-34:
(7*5)+(6*0)+(5*8)+(4*1)+(3*6)+(2*3)+(1*4)=107
107 % 10 = 7
So 50816-34-7 is a valid CAS Registry Number.

50816-34-7Downstream Products

50816-34-7Relevant articles and documents

Chirally deuterated benzyl chlorides from benzyl alcohols via hexachloroacetone/polymer-supported triphenylphosphine: Synthesis of protected (2S, 3S)-[3-2H, 15N]-tyrosine

Barnett, Derek W.,Refaei, Maryanne S.,Curley Jr., Robert W.

, p. 6 - 11 (2013/03/28)

Chirally deuterated benzyl chlorides were prepared using novel, general hexachloroacetone/polymer-supported triphenylphosphine treatment of chirally deuterated benzyl alcohols. Doubly labeled protected tyrosine was obtained in 62% yield with 86% de at the α-carbon and 82% de at the β-carbon. Key in the synthesis was the alkylation of 15N-labeled (-)-8-phenylmenthylhippurate with R-(-)-4-triisopropylsilyloxybenzyl-α-d chloride. Chirally deuterated benzyl chlorides were prepared in high yield with inversion from benzyl alcohols using solid-phase methods. One of the benzyl chlorides obtained was used in the synthesis of protected tyrosine labeled with 15N and chirally deuterated on the β-position. Copyright

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