635-08-5 Usage
General Description
3,4,5,6-tetrahydrophthalic acid, also known as cis-4-cyclohexene-1,2-dicarboxylic acid, is a chemical compound with the molecular formula C8H10O4. It is a white crystalline solid, and it is classified as a cyclohexene carboxylic acid. 3,4,5,6-tetrahydrophthalic acid is widely used in the production of various polymers, resins, and other industrial products. It is also utilized as a building block in organic synthesis for the preparation of more complex chemical compounds. Additionally, 3,4,5,6-tetrahydrophthalic acid is used in the pharmaceutical industry for the synthesis of certain drugs. However, it is important to handle this compound with caution due to its potential hazards if not handled properly.
Check Digit Verification of cas no
The CAS Registry Mumber 635-08-5 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,3 and 5 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 635-08:
(5*6)+(4*3)+(3*5)+(2*0)+(1*8)=65
65 % 10 = 5
So 635-08-5 is a valid CAS Registry Number.
InChI:InChI=1/C8H10O4/c9-7(10)5-3-1-2-4-6(5)8(11)12/h1-4H2,(H,9,10)(H,11,12)
635-08-5Relevant articles and documents
Variable-temperature study of hydrogen-bond symmetry in cyclohexene-1,2-dicarboxylate monoanion in chloroform-d
Perrin, Charles L.,Burke, Kathryn D.
supporting information, p. 4355 - 4362 (2014/04/03)
The symmetry of the hydrogen bond in hydrogen cyclohexene-1,2-dicarboxylate monoanion was determined in chloroform using the NMR method of isotopic perturbation. As the temperature decreases, the 18O-induced 13C chemical-shift separations increase not only at carboxyl carbons but also at ipso (alkene) carbons. The magnitude of the ipso increase is consistent with an 18O isotope effect on carboxylic acid acidity. Therefore it is concluded that this monoanion is a mixture of tautomers in rapid equilibrium, rather than a single symmetric structure in which a chemical-shift separation arises from coupling between a desymmetrizing vibration and anharmonic isotope-dependent vibrations, which is expected to show the opposite temperature dependence.
On the mechanism of oxidation of trans-decahydronaphthalene at 100
McARTHUR,SMITH
, p. 43 - 60 (2007/12/05)
-
