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Organic compounds that consist of benzoic acid with an additional carboxylic acid substitution, both groups are located in adjacent carbon atoms; includes compounds that are directly derived from phthalic acid.
This certified reference material (CRM) is produced and certified in accordance with ISO/IEC 17025 and ISO 17034. This CRM is traceable to the SI through a primary reference material from a NMI. Certified content incl. uncertainty and expiry date are stated on the enclosed certificate.