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1307876-21-6

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1307876-21-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1307876-21-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,0,7,8,7 and 6 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1307876-21:
(9*1)+(8*3)+(7*0)+(6*7)+(5*8)+(4*7)+(3*6)+(2*2)+(1*1)=166
166 % 10 = 6
So 1307876-21-6 is a valid CAS Registry Number.

1307876-21-6Relevant articles and documents

Efficient synthesis of a bisglycosyl kaempferol from fagonia taeckholmiana

Liu, Qingchao,Li, Wenhong,Guo, Tiantian,Li, Dong,Fan, Zhen,Yan, Suihong

, p. 324 - 325 (2011/05/14)

The first total synthesis of kaempferol-3-O-β-L-arabinopyranosyl-( 1→4)-α-L-rhamnopyranoside-7-O-α-L-rhamnopyranoside (1), a 3, 7-triglycosylflavone, which was isolated from the aerial parts of Fagonia taeckholmiana, was accomplished in 13 steps and 9.2% overall yield from commercially available kaempferol. We efficiently employed phase-transfer- catalyzed (PTC) glycosylation for the construction of phenol glycosides. Applying this approach will allow the preparation of derivatives for further study of structureactivity relationships (SAR).

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