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220350-18-5

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220350-18-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 220350-18-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,3,5 and 0 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 220350-18:
(8*2)+(7*2)+(6*0)+(5*3)+(4*5)+(3*0)+(2*1)+(1*8)=75
75 % 10 = 5
So 220350-18-5 is a valid CAS Registry Number.

220350-18-5Relevant articles and documents

Asymmetric Diels-Alder reaction of optically active 3-(3,3,3- trifluoropropenylsulfonyl)oxazolidine: Synthesis of (8R)8-trifluoromethyl-2- oxa-6-thia-5-azatricyclo[5.2.2.01,5]-undecane-6,6-dioxide

Okano, Takashi,Nagai, Tomoyuki,Eguchi, Shoji,Kimoto, Hiroshi

, p. 53 - 56 (2007/10/03)

Asymmetric Diels-Alder reaction of optically active 3-(3,3,3- trifluoropropenylsulfonyl)-1,3-oxazolidine (1) with several dienes gave adducts regio- and stereoselectively in 69 - 78% de. Acetalization of 2- methoxybutadiene adduct with catechol gave tricy

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