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6824-61-9

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6824-61-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 6824-61-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,8,2 and 4 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 6824-61:
(6*6)+(5*8)+(4*2)+(3*4)+(2*6)+(1*1)=109
109 % 10 = 9
So 6824-61-9 is a valid CAS Registry Number.

6824-61-9Downstream Products

6824-61-9Relevant articles and documents

SYNTHETIC ANTHRACYCLINONES-XXVII. ANTHRACYCLINONES BY INTRAMOLECULAR MARSCHALK REACTION. SYNTHESIS OF THE FEUDOMYCINONES AND RHODOMYCINONES.

Krohn, Karsten,Priyono, Wahyudi

, p. 4609 - 4616 (2007/10/02)

1,4,5-Trihydroxy-9,10-anthraquinone is transformed regioselectively to the α-hydroxy dichlorides 18-21, which are cyclized to yield predominantely the naturally configurated 9,10-trans-diols 1,3,26, and 27 (80 to 96percent d.e.).The monotrifluoroacetates 38-40 derived from the trans-diols are hydroxylated via bromination at C-7 to yield almost exclusively the 7,9-cis-9,10-trans-triols α1-rhodomycinone (4), feudomycinone D (7), and 4-O-methyl-β-rhodomycinone (42).The feudomycinones A (5) and C (6) are obtained with less chemo- and stereoselectivity by hydroxylation of the 10-deoxycompounds 33 and 34.

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