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1248653-91-9

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1248653-91-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1248653-91-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,8,6,5 and 3 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1248653-91:
(9*1)+(8*2)+(7*4)+(6*8)+(5*6)+(4*5)+(3*3)+(2*9)+(1*1)=179
179 % 10 = 9
So 1248653-91-9 is a valid CAS Registry Number.

1248653-91-9Downstream Products

1248653-91-9Relevant academic research and scientific papers

Synthesis of vicenin-1 and 3, 6,8- and 8,6-di-C-β-d-(glucopyranosyl- xylopyranosyl)-4′,5,7-trihydroxyflavones using two direct C-glycosylations of naringenin and phloroacetophenone with unprotected d-glucose and d-xylose in aqueous solution as the key reactions

Sato, Shingo,Koide, Tomoyuki

scheme or table, p. 1825 - 1830 (2010/10/18)

Vicenin-3 was synthesized from naringenin via a short five-step reaction, which included two regioselective direct C-glycosylations with d-glucose and d-xylose (yields: 22% and 30%, respectively) as the key reactions for a total yield of 4.4%. Vicenin-1 was also synthesized from phloroacetophenone via a 10-step reaction, including the same glycosylation described above, for a total yield of 2.7% with a vicenin-3 yield of 1.7%.

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