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1318780-82-3

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1318780-82-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1318780-82-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,1,8,7,8 and 0 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1318780-82:
(9*1)+(8*3)+(7*1)+(6*8)+(5*7)+(4*8)+(3*0)+(2*8)+(1*2)=173
173 % 10 = 3
So 1318780-82-3 is a valid CAS Registry Number.

1318780-82-3Downstream Products

1318780-82-3Relevant articles and documents

Unique phenyl ether type biflavonoids, zizyflavosides A and B with biomimetic synthesis for zizyflavoside A

Mostafa, Mahmoud,Takano, Fumihide,Ohta, Tomihisa

, p. 2497 - 2509 (2011/04/24)

During our investigation of Zizyphus spina-christi (L.) Willd. leaves for anti-inflammatory activity, eight compounds were characterized. Two are new phenyl ether type biflavonoids, which were assigned as zizyflavosides A (1) and B (2). The structures of 1 and 2 were determined by spectroscopic analyses including 1D, 2D NMR and MS spectroscopic and chemical data. The other isolated compounds were known flavonoids kaempferol-3-O-rutinoside (5), quercetin-3-O-rutinoside (6), 3',5'-di-C-β-D-glucosylphloretine (7), quercetin-3-O-[β-D-xylosyl-(1→2)-α-L-rhamnoside] -4'-O-α-L-rhamnoside (8), epiafzelechin (9) and quercetin-3-O-[β-D- xylosyl-(1→2)-α-L-rhamnoside] (10). Zizyflavoside A was synthesized from quercetin-3-O-rutinoside and kaempferol-3-O-rutinoside using laccase as an enzyme and this biomimetic synthesis could be indication to its biosynthetic pathway. The Japan Institute of Heterocyclic Chemistry.

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