Beschrijving
Isophthalic acid is a ROTI®Star CRM with CAS number 121-91-5, empirical formula C₈H₆O₄ and molar mass 166,13 g/mol. Packed as 1 g in glass, this reference substance for gas chromatography (GC) has a density of 1,53 g/cm³. It is intended for chromatography laboratories that require isophthalic acid as a GC reference substance. The 1 g glass pack is the unit quantity for this ROTI®Star CRM grade. Within analytical workflows, isophthalic acid from manufacturer Carl ROTH is used where a ROTI®Star CRM of this identity is specified. Chemical identification rests on CAS 121-91-5, formula C₈H₆O₄, molar mass 166,13 g/mol and density 1,53 g/cm³, together with the 1 g glass presentation. Chromatographers working in gas chromatography can select this material as a reference substance without changing the stated composition or pack. Isophthalic acid as ROTI®Star CRM therefore remains a 1 g glass-packed GC reference substance defined by its CAS number, empirical formula and molar mass, supporting consistent ordering and laboratory use in chromatography.
Key features
- CAS number: 121-91-5
- Pack size: 1 g glass
- EG nr.: 204-506-4
- Empirical formula: C₈H₆O₄
- Molar mass: 166,13 g/mol
- Storage temperature: +2 to +8 °C
- UNSPSC: 41116107
- Safety Data Sheet:
