Beschrijving
Diphenyl isophthalate is a ROTI®Star CRM with CAS number 744-45-6 and empirical formula C₂₀H₁₄O₄, presented as a 100 mg quantity in glass. This aromatic ester has a molar mass of 318,3 g/mol and is positioned as a reference standard for food analysis, specifically within phthalate standards used to support analytical method work. The 100 mg glass pack is intended for laboratory weighing and the preparation of calibration or working solutions. Because the amount is small, it suits laboratories that need only limited quantities of a defined reference material for food-testing programmes. Offered from manufacturer Carl ROTH in the ROTI®Star CRM range, diphenyl isophthalate belongs to the phthalate standards used in food-analysis workflows. The stated molar mass of 318,3 g/mol supports stoichiometric calculations when converting between mass and molar concentration. Analysts can apply this CRM when identifying or quantifying the corresponding ester in food matrices and related quality-control schemes. The 100 mg unit can be used to prepare small volumes of standard solutions in food-analysis laboratories.

