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18067-33-9

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18067-33-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 18067-33-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,0,6 and 7 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 18067-33:
(7*1)+(6*8)+(5*0)+(4*6)+(3*7)+(2*3)+(1*3)=109
109 % 10 = 9
So 18067-33-9 is a valid CAS Registry Number.

18067-33-9Relevant articles and documents

A SHORT ACCESS TO IRIDOID PRECURSORS

Cossy, J.

, p. 4113 - 4116 (2007/10/02)

A general approach to C-5 oxygenated iridoids is obtained by photoreductive cyclization of δ,ε-acetylenic cyclopentanones.

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