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108907-40-0

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108907-40-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 108907-40-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,8,9,0 and 7 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 108907-40:
(8*1)+(7*0)+(6*8)+(5*9)+(4*0)+(3*7)+(2*4)+(1*0)=130
130 % 10 = 0
So 108907-40-0 is a valid CAS Registry Number.

108907-40-0Downstream Products

108907-40-0Relevant articles and documents

Tannins and Related Compounds. LV. Isolation and Characterization of Acutissimins A and B, Novel Tannins from Quercus and Castanea Species

Ishimaru, Kanji,Nonaka, Gen-Ichiro,Nishioka, Itsuo

, p. 602 - 610 (2007/10/02)

Two novel and closely related tannins, designated as acutissimins A (1) and B (2), have been isolated from various Fageceous plants: Quercus acutissima, Q. miyagii, Q. stenophylla, Q. mongolica var. grosseserrata and Castanea crenata.Degradative and synthetic studies combined with 1H- and 13C-NMR spectrometry and various mass spectral measurements have permitted the assignments of the structures, in which (+)-catechin (4) and the C-glycosylated ellagitannin, castalagin (3), are connected through a carbon-carbon linkage.

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