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182816-16-6

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182816-16-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 182816-16-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,2,8,1 and 6 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 182816-16:
(8*1)+(7*8)+(6*2)+(5*8)+(4*1)+(3*6)+(2*1)+(1*6)=146
146 % 10 = 6
So 182816-16-6 is a valid CAS Registry Number.

182816-16-6Relevant articles and documents

Convenient routes to 2-aryl-2-fluoropropionic acids: Synthesis of monofluorinated analogues of (±)-ibuprofen, (±)-naproxen and related compounds

Goj, Olav,Kotila, Sirpa,Haufe, Guenter

, p. 12761 - 12774 (2007/10/03)

The synthesis of α-fluorinated arylpropionic acids 5 as analogues of the nonsteroidal anti-inflammatory agents (NSAIDs) flurbiprofen 1, ibuprofen 3 and naproxen 4 is accomplished by the oxidation of the corresponding primary alcohols 9. The latter are accessible on two different pathways showing their general applicability by variation of the aromatic moiety. Furthermore the influence of the fluorine substituent towards the conformation of the acid moiety in the crystal lattice is shown by comparative X-ray studies of compound 5c.

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