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81183-15-5

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81183-15-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81183-15-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,1,8 and 3 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 81183-15:
(7*8)+(6*1)+(5*1)+(4*8)+(3*3)+(2*1)+(1*5)=115
115 % 10 = 5
So 81183-15-5 is a valid CAS Registry Number.

81183-15-5Downstream Products

81183-15-5Relevant articles and documents

Condensed Heteocyclics: Part IX - Synthesis of Methoxy Analogues of Dihydrophenanthrothiazole, Dihydrophenanthroisoxazole, Dihydrophenanthropyrazole and Dihydronaphthocarbazole

Kumar, Satish,Sharma, K. S.

, p. 842 - 844 (2007/10/02)

7-Methoxy-4-oxo-1,2,3,4-tetrahydrophenanthrene (I) has been transformed into 2-amino-4,5-dihydro-9-methoxyphenanthrothiazole (III); 8b-aza-7,8-dihydro-3-methoxynaphthocarbazole (IV); 13(H)-7,8-dihydro-3-methoxynaphthocarbazole (V); 4,5-dihydro-9-methoxyphenanthroisoxazole (VII); 4,5-dihydro-9-methoxyphenanthropyrazole (VIII), its 1-phenyl (IX) and 1-thiocarbamoyl (X) analogues.

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