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257947-27-6

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257947-27-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 257947-27-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,7,9,4 and 7 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 257947-27:
(8*2)+(7*5)+(6*7)+(5*9)+(4*4)+(3*7)+(2*2)+(1*7)=186
186 % 10 = 6
So 257947-27-6 is a valid CAS Registry Number.

257947-27-6Relevant articles and documents

A practical and efficient synthesis of taxol C-13 side chain

Zhou,Mei,Chang,Feng

, p. 3609 - 3615 (2001)

A practical and efficient synthesis of taxol C-13 side chain from cheap and easily available starting material is described.

Resolution of 2-hydroxy-3-amino-3-phenylpropionamide and its conversion to C-13 sidechain of taxanes

-

, (2008/06/13)

The present invention provides an efficient route to the C-13 side chain of the anti-cancer drug paclitaxel (TAXOL) and its analogs. The process includes the resolution of racemic erythro 2-hydroxy-3-amino-3-phenylpropionamide by diastereomeric crystalliz

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