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131726-56-2

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131726-56-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 131726-56-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,7,2 and 6 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 131726-56:
(8*1)+(7*3)+(6*1)+(5*7)+(4*2)+(3*6)+(2*5)+(1*6)=112
112 % 10 = 2
So 131726-56-2 is a valid CAS Registry Number.

131726-56-2Relevant articles and documents

An examination of the affect of the epoxide stereochemistry in the nitrogen extrusion from exo- And endo-6,7-diazo-3-oxotricyclo[3.2.2.02,4]Non-6-ene

Liao, Yusheng,White, James B.

, p. 5129 - 5132 (2007/10/02)

The exo and endo isomers of 6,7-diazo-3-oxotricyclo[3.2.2.02,4]non-6-ene have been prepared and their extrusion of nitrogen examined. The exo isomer 10 underwent the expected homo-retro-Diels-Alder reaction at room temperature to give 4,5-dihydrooxepin (11), but the endo isomer extruded nitrogen at>180 °C to give cyclohexenone.

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