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109081-04-1

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109081-04-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 109081-04-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,0,8 and 1 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 109081-04:
(8*1)+(7*0)+(6*9)+(5*0)+(4*8)+(3*1)+(2*0)+(1*4)=101
101 % 10 = 1
So 109081-04-1 is a valid CAS Registry Number.

109081-04-1Relevant articles and documents

128. Deoxy-nitrosugars. 15th Communication. Synthesis of N-Acetylneuraminic Acid and N-Acetyl-4-epineuraminic Acid

Baumberger, Franz,Vasella, Andrea

, p. 1205 - 1215 (2007/10/02)

A synthesis of N-acetylneuraminic acid (1) and of N-acetyl-4-epineuraminic acid (2, R = H) from 2-acetamido-4,6-O-benzylidene-1,2-dideoxy-1-nitro-D-mannopyranose (3) and 2-acetamido-1,2-dideoxy-4,6-O-isopropylidene-1-nitro-D-mannopyranose (4), respectivel

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