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88244-65-9

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88244-65-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 88244-65-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,8,2,4 and 4 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 88244-65:
(7*8)+(6*8)+(5*2)+(4*4)+(3*4)+(2*6)+(1*5)=159
159 % 10 = 9
So 88244-65-9 is a valid CAS Registry Number.

88244-65-9Downstream Products

88244-65-9Relevant articles and documents

Synthesis of Condensed Tannins. Part 9. The Condensation Sequence of Leucocyanidin with (+)-Catechin and with the Resultant Procyanidins

Delcour, Jan. A.,Ferreira, Daneel,Roux, David G.

, p. 1711 - 1717 (2007/10/02)

Molar equivalents of synthetic (2R,3S,4R of S)-leucocyanidin and (+)-catechin condense with exceptional rapidity at pH 5 under ambient conditions to give the all-trans-- and -bi- (procyanidins B3, B6) the all-trans-- and -tri- (procyanidin C2, and novel isomer), and the presumed all-trans--linked tetraflavanoid analogue in the proportions 10:1:12:1:3.The facility and sequence of these condensations correlate with the observed absence of leucocyanidins (flavan-3,3',4,4',5,7-hexaols) and also the dominance of related condensed tannins in plant extracts.

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