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21653-19-0

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21653-19-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21653-19-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,6,5 and 3 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 21653-19:
(7*2)+(6*1)+(5*6)+(4*5)+(3*3)+(2*1)+(1*9)=90
90 % 10 = 0
So 21653-19-0 is a valid CAS Registry Number.

21653-19-0Downstream Products

21653-19-0Relevant articles and documents

(-) 3 Isothujone, a small nonnitrogenous molecule with antinociceptive activity in mice

Rice,Wilson

, p. 1054 - 1057 (2007/10/13)

(-) 3 isothujone and (+) 3 thujone were examined for antinociceptive activity using the hot plate and Nilsen tests. In the hot plate test (-) 3 isothujone (ED50 = 6.5 mg/kg) was found to be codeine like and equipotent with (-) Δ9 tetrahydrocannabinol while the racemic material was essentially half as potent as the levorotatory isomer. (+) 3 Thyjone was inactive in both antinociceptive tests as were several structural analogues of the 3 thujones. As with the THC's less antinociceptive activity was observed in the Nilsen test than in the hot plate assay. Acute toxicities for the 3 thujones were determined and vastly improved synthetic procedures have been developed for two long known but difficultly accessible 3 thujanols.

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