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85847-70-7

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85847-70-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 85847-70-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,5,8,4 and 7 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 85847-70:
(7*8)+(6*5)+(5*8)+(4*4)+(3*7)+(2*7)+(1*0)=177
177 % 10 = 7
So 85847-70-7 is a valid CAS Registry Number.

85847-70-7Upstream product

85847-70-7Downstream Products

85847-70-7Relevant articles and documents

Biogenetic-type Synthesis of Santonin, Chrysanolide, Dihydrochrysanolide, Tulirinol, Arbusculin-C, Tanacetin, and Artemin

El-Feraly, Farouk S.,Benigni, Daniel A.,McPhail, Andrew T.

, p. 355 - 364 (2007/10/02)

The title compounds were synthsised from their possible biogenetic precursors through hydroperoxide intermediates generated by photo-oxygenation.This route for biological oxygenation may serve as a substitute to epoxidation.The 13C n.m.r. special assignments for all intermediates were made.Single-crystal X-ray analyses unequivocally established the 1S configuration in dihydrochrysanolide (14) and its hydroperoxy-analogue (12).Isomorphous crystals of (12) and (14) belong to the monoclinic system, space group P21, with a = 14.350(6), b = 5.882(3), c = 10.343(3) Angstroem, β = 107.64(2) deg, Z = 2, for (12), and a = 14.461(6), b = 5.887(3), c = 9.698(4) Angstroem, β = 107.44(2) deg, Z = 2, for (14).Least-squares refinement of atomic parameters converged to R 0.040 for (12) and 0.033 for (14) over 1484 and 1300 reflections, respectively, measured by diffractometer.

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