{"id":539,"date":"2022-10-05T12:39:45","date_gmt":"2022-10-05T12:39:45","guid":{"rendered":"https:\/\/mebicar.pl\/sklep\/idra-21-purity-%e2%89%a5-99-1000mg\/"},"modified":"2026-08-13T18:24:26","modified_gmt":"2022-10-05T12:39:45","slug":"idra-21-2","status":"publish","type":"product","link":"https:\/\/mebicar.pl\/en\/sklep\/idra-21-2\/","title":{"rendered":"IDRA-21 Benzothiadiazine Solid: Every Certificate Parameter Defined Term by Term"},"content":{"rendered":"\n

The entry below sets out the material offered under the catalogue name IDRA-21 in the vocabulary a receiving laboratory actually uses. Each term is given the meaning it carries on a certificate of analysis, because most disputes over a delivered solid come from two parties reading the same word differently.<\/p>\n\n\n\n

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Catalogue name<\/dt>\n
IDRA-21, a benzothiadiazine derivative supplied as a solid for analytical work.<\/dd>\n
Systematic name<\/dt>\n
7-chloro-3-methyl-3,4-dihydro-2H-1,2,4-benzothiadiazine 1,1-dioxide.<\/dd>\n
CAS registry number<\/dt>\n
22503-72-6, the identifier to quote in ordering and in waste documentation.<\/dd>\n
Summary formula<\/dt>\n
C8H9ClN2O2S, which tells the analyst at once that chlorine, nitrogen and sulfur all have to be accounted for.<\/dd>\n
Formula weight<\/dt>\n
232.69, the figure used when converting a weighed mass into molar amount.<\/dd>\n
Appearance<\/dt>\n
White to off-white solid powder; any strong colouration is a reason to hold the batch.<\/dd>\n
Declared assay<\/dt>\n
Not less than 99 percent of the main component, valid only together with the method named beside it.<\/dd>\n
Stereochemistry<\/dt>\n
The carbon at position 3 of the ring is stereogenic, so a chiral determination is a separate request from the ordinary assay.<\/dd>\n
Sulfated ash<\/dt>\n
The inorganic residue left after ignition, reported separately from organic related substances.<\/dd>\n
Loss on drying<\/dt>\n
Mass lost under defined drying conditions, covering water and volatile solvents together.<\/dd>\n
Retest date<\/dt>\n
The date by which identity and assay should be confirmed again, not an expiry in the consumer sense.<\/dd>\n<\/dl>\n\n\n\n

The presence of a sulfonyl group and a ring chlorine shapes the whole analytical plan. Elemental composition can be cross-checked against the summary formula, isotope ratios in a mass spectrum betray the chlorine atom directly, and the sulfonyl stretching bands in an infrared spectrum give a fast structural confirmation. None of these substitutes for chromatography, but together they close identity long before the assay figure is discussed. Zobacz r\u00f3wnie\u017c odczynnik laboratoryjny tej klasy: Methylene Blue \/ B\u0141\u0118KIT METYLENOWY. Czysto\u015b\u0107 \u2265 99.<\/a>.<\/p>\n\n\n\n

Related substances in a material of this type come from ring formation and from incomplete oxidation of the sulfur centre. Solvent residues from the last crystallisation are quantified by headspace gas chromatography and reported apart from the organic impurity total. Water is a parameter in its own right and is determined by titration rather than estimated from the look of the powder.<\/p>\n\n\n\n

Storage follows the same rules as for other halogenated heterocyclic solids: sealed container, cool and dry, away from daylight and from strong oxidising agents. Every withdrawal is entered in the substance ledger with date and mass, so that the remaining quantity on the shelf always matches the paperwork. Waste goes to halogen-containing organic waste, kept separate from the halogen-free stream. Zobacz r\u00f3wnie\u017c odczynnik w opakowaniu gramowym: Modafinil (CAS 68693-11-8) \u2014 certyfikat analizy od<\/a>.<\/p>\n\n\n\n

Zobacz te\u017c w katalogu<\/h2>\n\n\n\n