84987-89-3 Usage
General Description
3-Amino-5-nitrobenzoisothiazole is a chemical compound with a molecular formula C7H5N3O3S. It is a heterocyclic aromatic compound that contains both a benzene ring and an isothiazole ring, as well as an amino group and a nitro group. It is commonly used in pharmaceutical research and development as a building block for the synthesis of various biologically active compounds, particularly as a potential antitumor agent. In addition, its unique structure and reactivity make it a valuable intermediate in the production of diverse classes of organic compounds. Its versatile chemical properties and potential medicinal applications make it an important target for further study and investigation in the fields of chemistry and pharmacology.
Check Digit Verification of cas no
The CAS Registry Mumber 84987-89-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,9,8 and 7 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 84987-89:
(7*8)+(6*4)+(5*9)+(4*8)+(3*7)+(2*8)+(1*9)=203
203 % 10 = 3
So 84987-89-3 is a valid CAS Registry Number.
84987-89-3Relevant articles and documents
Stereochemical Control of Reductions. 7. Reagent Hinges: Cis Reduction of β-Octalones by Internal Delivery of Chromium(II)
Thompson, Hugh W.,Shah, Nalini V.
, p. 1325 - 1328 (1983)
Δ1,9-Octal-2-ones with angular substituents R have been synthesized and subjected to reduction conditions by employing the ethylenediamine complex of CrSO4 in aqueous DMF at 25 deg C.For R = Me, CH2OCH2OCH2CH2OMe, CH2OTHP, and COOMe negligible reduction was observed within 60 h, and starting materials were recovered in 60 percent yields.For R= CH2OH and COOH complete disappearance of starting material was achieved in 30-64 h, with isolation of ca. 40 percent of saturated ketone having exclusively cis stereochemistry.These results are interpreted in terms of precoordination of Cr(II) to the hydroxyl function, internal donation to yield a chelated organochromium intermediate, and stereoretentive hydrolysis to cis product.
