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Benzoic acid. Formula: C 7 H 6 O 2. Molecular weight: 122.1213. IUPAC Standard InChI:InChI=1S/C7H6O2/c8-7 (9)6-4-2-1-3-5-6/h1-5H, (H,8,9) Copy. IUPAC Standard InChIKey:WPYMKLBDIGXBTP-UHFFFAOYSA-N Copy. CAS Registry Number: 65-85-0.
20 Οκτ 2023 · A rigorous and metrologically-sound certification of benzoic acid content was conducted by the Chemical Sciences Division that comprised coulometric assays in conjunction with multiple calibration schemes for an internal standard qNMR technique, as well as a thorough analysis of impurities.
Abstract. Currently, due to the large number of reports regarding the harmfulness of food additives, more and more consumers follow the so-called “clean label” trend, i.e., prefer and choose the least-processed food products. One of the compounds known as a preservative with a high safety profile is sodium benzoate.
16 Ιουλ 2020 · NIST PS1 . Primary Standard for quantitative NMR (Benzoic Acid) CERTIFICATE OF ANALYSIS. Purpose: This NIST Certified Reference Material is intended for use as a primary standard for quantitative nuclear magnetic resonance (qNMR) methods.
9 Σεπ 2018 · A complete, first-of-its-kind chemical characterization of NIST PS1 Primary Standard for quantitative NMR (benzoic acid) has confidently established a direct realization of SI units for quantitative organic chemical measurement and established metrological traceability for historical use of SRM 350b Benzoic Acid (acidimetric) as a primary ...
8 Νοε 2019 · Because benzoic acid has been widely used as a qNMR primary standard [11, 17] we also investigated the applicability of our optimized parameter set for the 1 H-qNMR purity assignment of DMSO 2 using the NIST CRM 350b for benzoic acid as the internal standard in solution in CD 3 OD.
