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129885-80-9

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129885-80-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 129885-80-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,8,8 and 5 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 129885-80:
(8*1)+(7*2)+(6*9)+(5*8)+(4*8)+(3*5)+(2*8)+(1*0)=179
179 % 10 = 9
So 129885-80-9 is a valid CAS Registry Number.

129885-80-9Upstream product

129885-80-9Relevant articles and documents

Synthesis of α- and β-D,L-ribo-carbahex-2-ulofuranose

Marschner,Penn,Griengl

, p. 5067 - 5078 (1993)

Both α- and β-D,L-ribo-carbahex-2-ulofuranose have been synthesized in racemic form starting from norbornen-2-one. In the course of the synthesis the reaction of sulfur ylides with α-alkoxyketones took an unexpected stereochemical pathway.

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