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130894-44-9

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130894-44-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 130894-44-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,0,8,9 and 4 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 130894-44:
(8*1)+(7*3)+(6*0)+(5*8)+(4*9)+(3*4)+(2*4)+(1*4)=129
129 % 10 = 9
So 130894-44-9 is a valid CAS Registry Number.

130894-44-9Downstream Products

130894-44-9Relevant articles and documents

Optically pure (S)-cyclopent-2-en-1-ol and (S)-3-methoxycylopentene

Wahhab, Amal,Tavares, Donald F.,Rauk, Arvi

, p. 1559 - 1563 (2007/10/02)

Optically pure (S)-cyclopent-2-en-1-ol, D20 -137.9 deg (c 1.1, CHCl3), and (S)-3-methoxycyclopentene, D20 -116.9 deg (c 3.86, n-hexane), were prepared from ethyl (1R,2S)-2-hydroxycylopentanecarboxylate, which is readily available by yeast reduction of ethyl 2-oxocyclopentanecarboxylate.The optical purity of the alcohol was determined from its Mosher ester, and that of the ether by gas chromatography using a Ni-4-Pin column.

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