Sigma-Aldrich 207772 Iodine ACS reagent, ≥99.8%, solid 500 gr
Kategori
Marka
Stok Kodu
LB.SA.207772-500G
Kısa Bilgi
Empirical Formula (Hill Notation): I2 CAS Number: 7553-56-2 Molecular Weight: 253.81 Beilstein: 3587194 EC Number: 231-442-4 MDL number: MFCD00011355 eCl@ss: 38050601 PubChem Substance ID: 329752021 NACRES: NA.21
Bilgi
CAS Number: 7553-56-2
| Sigma-Aldrich 207772 Iodine ACS reagent, ≥99.8%, solid |
| Empirical Formula (Hill Notation): I2 CAS Number: 7553-56-2 Molecular Weight: 253.81 Beilstein: 3587194 EC Number: 231-442-4 MDL number: MFCD00011355 eCl@ss: 38050601 PubChem Substance ID: 329752021 NACRES: NA.21 |
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PROPERTIES
grade ACS reagent
Quality Level 200 vapor density 9 (vs air) vapor pressure 0.31 mmHg ( 25 °C) 1 mmHg ( 38.7 °C) Assay ≥99.8% form solid resistivity 1.3E15 μΩ-cm impurities ≤0.01% nonvolatiles bp 184 °C (lit.) mp 113 °C (lit.) anion traces Cl- and Br-: ≤0.005% storage temp. room temp SMILES string II InChI 1S/I2/c1-2 InChI key PNDPGZBMCMUPRI-UHFFFAOYSA-N DESCRIPTION General description Iodine exhibits exceptionally high dielectric polarization in various solvents (dioxane, isobutylene, p-xylene and benzene).[1] Application Catalyst for synthesis of esters by condensation of carboxylic acids with alcohols or transfesterification. A mild and efficient method for esterification and transesterification catalyzed by iodine Iodine has been used for the easy visualization of 9-bromononanoic acid, allyl ester by thin layer chromatography (TLC).[2] It has also been used for the preparation of oxidation solution, required for the synthesis of oligodeoxynucleotides bearing 3′-terminal phosphorothioate.[3] Iodine may be used to catalyze: - Synthesis of 5-(4-nitrophenyl)-10,15,20-triphenylporphyrin.[4] - Oxidative C-H bond amination of saturated hydrocarbons.[5] - Protection of amines with benzyloxycarbonyl (Cbz) group.[6] - Direct oxidative coupling/annulation of β-keto esters or 2-pyridinyl-β-esters with alkenes to form dihydrofurans and indolizine, respectively.[7] - Thiocyanation of aromatic systems to form aryl thiocyanates.[8] - Esterification of cellulose with acetic anhydride to form cellulose triacetate.[9] |