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216662-57-6

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216662-57-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 216662-57-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,6,6,6 and 2 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 216662-57:
(8*2)+(7*1)+(6*6)+(5*6)+(4*6)+(3*2)+(2*5)+(1*7)=136
136 % 10 = 6
So 216662-57-6 is a valid CAS Registry Number.

216662-57-6Relevant articles and documents

A novel efficient and versatile route to the synthesis of 5-O-feruloylquinic acids

Smarrito, Candice Menozzi,Munari, Caroline,Robert, Fabien,Barron, Denis

scheme or table, p. 986 - 987 (2009/02/05)

A novel synthesis of 5-O-feruloylquinic acid, a polyphenolic compound found in coffee beans, and its methyl ester derivative has been optimized. The sequence involves 6 steps and is compatible with the preparation of potential human metabolites of these c

Design, synthesis, and neuraminidase inhibitory activity of GS-4071 analogues that utilize a novel hydrophobic paradigm.

Hanessian, Stephen,Wang, Jianchio,Montgomery, Debra,Stoll, Vincent,Stewart, Kent D,Kati, Warren,Maring, Clarence,Kempf, Dale,Hutchins, Charles,Laver, W Graeme

, p. 3425 - 3429 (2007/10/03)

Structure-based design has led to the synthesis of a novel analogue of GS-4071, an influenza neuraminidase inhibitor, in which the basic amino group has been replaced by a hydrophobic vinyl group. An X-ray co-crystal structure of the new inhibitor (K(i)=4

Transformations of quinic acid. Asymmetric synthesis and absolute configuration of mycosporin I and mycosporin-gly

White,Cammack,Sakuma,Rewcastle,Widener

, p. 3600 - 3611 (2007/10/02)

D-(-)-Quinic acid (1) was converted to the fungal metabolites mycosporin I (2) and mycosporin-gly (13) via the iminophosphorane 64. The latter was prepared in 10 steps from 1 using oxidative bromination of quinide 33 to furnish 41. Reduction of the γ-lact

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