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81148-82-5

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81148-82-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81148-82-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,1,4 and 8 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 81148-82:
(7*8)+(6*1)+(5*1)+(4*4)+(3*8)+(2*8)+(1*2)=125
125 % 10 = 5
So 81148-82-5 is a valid CAS Registry Number.

81148-82-5Relevant articles and documents

Total synthesis of agalloside, isolated from: Aquilaria agallocha, by the 5-O-glycosylation of flavan

Arai, Midori A.,Yamaguchi, Yumi,Ishibashi, Masami

, p. 5025 - 5032 (2017)

Agalloside (1) is a neural stem cell differentiation activator isolated from Aquilaria agallocha by our group using Hes1 immobilized beads. We conducted the first total synthesis of agalloside (1) via the 5-O-glycosylation of flavan 25 using glycosyl fluoride 20 in the presence of BF3·Et2O. Subsequent oxidation with DDQ to flavanone 2 and deprotection successively provided agalloside (1). This synthetic strategy holds promise for use in the synthesis of 5-O-glycosylated flavonoids. The synthesized agalloside (1) accelerated neural stem cell differentiation, which is a result comparable to that for the naturally occurring compound 1.

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