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66851-70-5

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66851-70-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 66851-70-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,8,5 and 1 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 66851-70:
(7*6)+(6*6)+(5*8)+(4*5)+(3*1)+(2*7)+(1*0)=155
155 % 10 = 5
So 66851-70-5 is a valid CAS Registry Number.

66851-70-5Relevant articles and documents

Process for the preparation of azacycloalkylakanoyl pseudotetrapeptides

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, (2008/06/13)

This invention is directed to a process for preparing a pseudotetrapeptide of formula I or a salt or prodrug thereof wherein is optionally nitrogen protected azaheterocyclyl; is a single or double bond; q is 1-5; B is alkyl, cycloalkyl, cycloalkylalkyl, alkylcycloalkyl, alkylcycloalkylalkyl, aryl, aralkyl, alkylaryl, or alkylaralkyl; Q2 is H or a carboxylic acid protecting group; J is —H, alkyl, cycloalkyl, cycloalkylalkyl, alkylcycloalkyl, alkylcycloalkylalkyl, aryl, substituted aryl, aralkyl, substituted aralkyl; L is OR1, or NR1R2, where R1 and R2 are independently —H, alkyl, cycloalkyl, cycloalkylalkyl, alkylcycloalkyl, alkylcycloalkylalkyl, aryl, aralkyl, alkylaryl or alkylaralkyl; and p is 1 or 2 which comprises the coupling of two dipeptides or psuedopeptides.

Chemical studies on amino acids and peptides. III. 4,5-Diaryl-4-oxazolin-2-one derivatives as an amino protecting group

Kanaoka,Kurata

, p. 660 - 664 (2007/10/10)

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