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4-Ethoxy-4-hydroxy-2-pentyl-butyric acid lactone, also known as opt.inakt, is a complex organic compound with the molecular formula C11H20O4. It is a cyclic ester derived from butyric acid, featuring a five-membered lactone ring and a pentyl chain. This chemical is characterized by the presence of an ethoxy group (C2H5O) and a hydroxyl group (OH) attached to the carbon atoms of the lactone ring. Opt.inakt is not an active ingredient, meaning it does not possess the biological or chemical properties of the parent compound. It is often found as a byproduct or impurity in the synthesis of various pharmaceuticals and chemicals. Due to its complex structure, opt.inakt may have potential applications in the fields of chemistry and material science, although its specific uses and properties require further investigation and research.

3494-59-5

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3494-59-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 3494-59-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,4,9 and 4 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 3494-59:
(6*3)+(5*4)+(4*9)+(3*4)+(2*5)+(1*9)=105
105 % 10 = 5
So 3494-59-5 is a valid CAS Registry Number.

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