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332900-03-5

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332900-03-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 332900-03-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,2,9,0 and 0 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 332900-03:
(8*3)+(7*3)+(6*2)+(5*9)+(4*0)+(3*0)+(2*0)+(1*3)=105
105 % 10 = 5
So 332900-03-5 is a valid CAS Registry Number.

332900-03-5Relevant articles and documents

Synthesis of [2-13C, 4-13C]-(2R,3S)-catechin and [2-13C, 4-13C]-(2R,3R)-epicatechin

Sharma, Pradeep K.,He, Min,Romanczyk Jr., Leo J.,Schroeter, Hagen

, p. 605 - 612 (2011/08/21)

The first synthesis of doubly labeled, [2-13C, 4- 13C]-(2R,3S)-catechin 15 and [2-13C, 4- 13C]-(2R,3R)-epicatechin 18 starting from labeled 2-hydroxy-4, 6-bis(benzyloxy)acetophenone 3 and labeled 3, 4-bis(benzyloxy)-benzaldehyde 7 are described. Copyright

Total synthesis of isotopically labelled flavonoids. Part 3: 13C-labelled (-)-procyanidin B3 from 1-[13C]-acetic acid

Arnaudinaud, Valérie,Nay, Bastien,Nuhrich, Alain,Deffieux, Gérard,Mérillon, Jean-Michel,Monti, Jean-Pierre,Vercauteren, Joseph

, p. 1279 - 1281 (2007/10/03)

The regioselectively 13C-labelled (-)-procyanidin B3 was prepared in eight steps from 1-[13C]-acetic acid.

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