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129371-40-0

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129371-40-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 129371-40-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,3,7 and 1 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 129371-40:
(8*1)+(7*2)+(6*9)+(5*3)+(4*7)+(3*1)+(2*4)+(1*0)=130
130 % 10 = 0
So 129371-40-0 is a valid CAS Registry Number.

129371-40-0Upstream product

129371-40-0Downstream Products

129371-40-0Relevant articles and documents

DECOMPOSITION REACTIONS OF ARTEETHER, A SEMISYNTHETIC DERIVATIVE OF QINGHAOSU (ARTEMISININ)

Idowu, O. R.,Maggs, J. L.,Ward, S. A.,Edwards, G.

, p. 1871 - 1884 (1990)

Arteether, an antimalarial derivative of qinghaosu, is extensively decomposed in acid aqueous media.The decomposition products include an α,β-unsaturated decalone and α,β-unsaturated aldehydes.Formation of the latter involves the unusual partial hydrolysis of acetal ring of arteether to an ether function.The endoperoxide group of arteether is also readily attacked by sodium dithionite in an alkaline medium to give a product in which both peroxidic oxygens have been eliminated while the acetal ring is unaffected.In a neutral medium, however, the product of reduction is a diol.

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