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20056-09-1

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20056-09-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20056-09-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,0,5 and 6 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 20056-09:
(7*2)+(6*0)+(5*0)+(4*5)+(3*6)+(2*0)+(1*9)=61
61 % 10 = 1
So 20056-09-1 is a valid CAS Registry Number.

20056-09-1Downstream Products

20056-09-1Relevant articles and documents

Metal triflates: On the question of Lewis versus Br?nsted acidity in retinyl carbocation formation

Williams, D. Bradley G.,Lawton, Michelle

, p. 68 - 71 (2010)

Al(OTf)3 generates blue carbocations from retinyl acetate. The mechanism appears to be exclusively water-derived induced Br?nsted acidity causing loss of acetic acid, not Lewis-mediated acetate abstraction. Dry DCM (1 ppm water) avoided water i

Transient Phenomena in the Pulse Radiolysis of Retinyl Polyenes. 2. Protonation Kinetics

Bobrowski, K.,Das, P. K.

, p. 1704 - 1709 (2007/10/02)

The results of a study are presented concerning the kinetics of reactions of various retinyl derivatives with hydrogen ions released pulse rediolytically in aerated 2-propanol containing 0.5 M acetone and 0.2 M carbon tetrachloride.For retinal and polyene

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