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81661-50-9

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81661-50-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81661-50-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,6,6 and 1 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 81661-50:
(7*8)+(6*1)+(5*6)+(4*6)+(3*1)+(2*5)+(1*0)=129
129 % 10 = 9
So 81661-50-9 is a valid CAS Registry Number.

81661-50-9Relevant articles and documents

Semisynthetische Rhodomycine: Neue Glycosylierungsverfahren zur Synthese von Anthracyclin-Oligosacchariden

Kolar, Cenek,Kneissl, Guenther

, p. 827 - 828 (2007/10/02)

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Synthesis of 7-daunomycine

Khadem, Hassan S.,Matsuura, Daisaburo

, p. C1 - C4 (2007/10/02)

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