117902-57-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117902-57-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,9,0 and 2 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 117902-57:
(8*1)+(7*1)+(6*7)+(5*9)+(4*0)+(3*2)+(2*5)+(1*7)=125
125 % 10 = 5
So 117902-57-5 is a valid CAS Registry Number.
117902-57-5Relevant academic research and scientific papers
SYNTHESIS OF SEVEN PENTA-N,O-ACETYL-PSEUDO-2-AMINO-2-DEOXY-DL-HEXOPYRANOSES
Ogawa, Seiichiro,Orihara, Masaru
, p. 199 - 212 (2007/10/02)
The 1,5-dialdehyde generated through periodate oxidation of 4,7-O-isopropylidene-pseudo-α-DL-galactopyranose (3) undergoes base-catalysed cyclisation with nitromethane to give three crystalline pseudo-2-deoxy-2-nitro-DL-hexopyranose derivatives with the β
