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681287-04-7

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681287-04-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 681287-04-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,1,2,8 and 7 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 681287-04:
(8*6)+(7*8)+(6*1)+(5*2)+(4*8)+(3*7)+(2*0)+(1*4)=177
177 % 10 = 7
So 681287-04-7 is a valid CAS Registry Number.

681287-04-7Downstream Products

681287-04-7Relevant articles and documents

An Unusual Reverse Turn Structure Adopted by a Furanoid Sugar Amino Acid Incorporated in Gramicidin S

Grotenbreg, Gijsbert M.,Timmer, Mattie S. M.,Llamas-Saiz, Antonio L.,Verdoes, Martijn,Van Der Marel, Gijsbert A.,Van Raaij, Mark J.,Overkleeft, Herman S.,Overhand, Mark

, p. 3444 - 3446 (2004)

A new reverse turn, replacing one of the native type II′ β-turns in the cyclic peptide antibiotic gramicidin S, induced by a furanoid sugar amino acid is revealed. The C3-hydroxyl function plays a pivotal role by acting as a H-bond acceptor, co

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