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73540-74-6

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73540-74-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 73540-74-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,5,4 and 0 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 73540-74:
(7*7)+(6*3)+(5*5)+(4*4)+(3*0)+(2*7)+(1*4)=126
126 % 10 = 6
So 73540-74-6 is a valid CAS Registry Number.

73540-74-6Relevant articles and documents

Diversity-Oriented Synthesis of Calothrixins and Ellipticines

Dethe, Dattatraya H.,Murhade, Ganesh M.

, p. 6953 - 6962 (2016/02/19)

The divergent synthesis of calothrixins and ellipticines has been accomplished by utilising the one-pot formation of o-diacylarenes as a key intermediate through rearrangement of o-hydroxy ketone monoacyl hydrazones by lead tetraacetate mediated oxidation. The divergent synthesis of calothrixins and ellipticines has been accomplished by utilising the one-pot formation of o-diacylarenes as a key intermediate through rearrangement of o-hydroxy ketone monoacyl hydrazones by lead tetraacetate mediated oxidation.

Reaction of l-benzylindole-2,3-dicarboxylic anhydride with 3-bromo-4-lithiopyridine: Formal synthesis of ellipticine

Miki, Yasuyoshi,Tada, Yoshitaka,Matsushita, Ko-Ichi

, p. 1593 - 1597 (2007/10/03)

Reaction of l-benzylindole-2,3-dicarboxylic anhydride with 3-bromo-4-lithiopyridine gave 2-(3-bromoisonicotinoyl)indole-3-carboxylic acid as the sole product. The indole-3-carboxylic acid could be converted to 6-benzylellipticine quinone in five steps.

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