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100343-22-4

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100343-22-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 100343-22-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,0,3,4 and 3 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 100343-22:
(8*1)+(7*0)+(6*0)+(5*3)+(4*4)+(3*3)+(2*2)+(1*2)=54
54 % 10 = 4
So 100343-22-4 is a valid CAS Registry Number.

100343-22-4Relevant articles and documents

Study on fluorination of 2,3-dideoxy-2,3-(N-tosylepimino)-α-D-allopyranosides, and synthesis of 3'-deoxy-3'-fluoro-kanamycin B and 3',4'-dideoxy-3'-fluorokanamycin B

Kobayashi,Tsuchiya,Ohgi,Taneichi,Koyama

, p. 89 - 105 (2007/10/02)

Reaction of the structurally rigid methyl 2,3-dideoxy-4,6-O-isopropylidene-2,3-(N-tosylepimino)-α-D-allopyrano side (6) with KHF2 in DMF at 150° gave initially methyl 2,3-dideoxy-2-fluoro-4,6-O-isopropylidene-3-tosylamido-α-D-altropyra noside (

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