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403984-15-6

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403984-15-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 403984-15-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,3,9,8 and 4 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 403984-15:
(8*4)+(7*0)+(6*3)+(5*9)+(4*8)+(3*4)+(2*1)+(1*5)=146
146 % 10 = 6
So 403984-15-6 is a valid CAS Registry Number.

403984-15-6Downstream Products

403984-15-6Relevant articles and documents

Synthesis of 6,7-dehydroartemisinic acid

Sy,Brown

, p. 2421 - 2429 (2001)

The natural product 6,7-dehydroartemisinic acid from Artemisia annua has been synthesized in four steps from artemisitene, which was in turn prepared in four steps from commercially available artemisinin. The forward synthesis involves the acid degradation of artemisitene and some comparisons are made between the products from this reaction and the more extensively studied acid degradation reaction of its 11,13-dihydro analogue, artemisinin.

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