Cas 857665-78-2,benzyl 4-(3-chloro-4-hydroxybenzyl-[ring-13C<sub>6</sub>])-5-oxo-1,3-oxazolidine-3-carboxylate

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Check Digit Verification of cas no

The CAS Registry Mumber 857665-78-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,7,6,6 and 5 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 857665-78:
(8*8)+(7*5)+(6*7)+(5*6)+(4*6)+(3*5)+(2*7)+(1*8)=232
232 % 10 = 2
So 857665-78-2 is a valid CAS Registry Number.

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857665-79-3 (2S)-2-benzyloxycarbonylamino-3-(3-chloro-4-hydroxyphenyl-[ring-13C₆])-propanoic acid

857665-78-2Relevant academic research and scientific papers

Controlled synthesis of labelled 3-L-chlorotyrosine-[ring- 13C6] and of 3,5-L-dichlorotyrosine-[ring- 13C6]

Allevi, Pietro,Olivero, Paola,Anastasia, Mario

, p. 935 - 945 (2007/10/03)

Pure 3-L-chlorotyrosine-[ring-13C6] is prepared by chlorination of the 5-oxazolidinone of L-tyrosine-[ring-13C 6] with SO2Cl2 in CH3COOH-Et 2O and successive one-pot regeneration of the protected aminoacidic functions by BCl3 in dichloromethane. Copyright

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