Description
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:
Recently viewed
You may also like
Browse related categories
Category
Analytical standards & reference materials
Sub-category
Chromatography standards (GC, HPLC, pesticides)
Catalogue
Brand
Questions about Isophthalic acid, ROTI®Star CRM, 1 g
What is this article?
Isophthalic acid, ROTI®Star CRM, 1 g is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Chromatography standards (GC, HPLC, pesticides), inside Analytical standards & reference materials, in Lab chemicals.
A chromatography standard is the substance, or the mix, injected so a peak can be named and quantified. Pesticide mixes, residual-solvent mixes and single-compound standards are different articles. The concentration and the solvent are the specification. The solvent has to be one the method may contain.
A reference material is the article against which another result is compared. Its value is stated, and the uncertainty of that value is part of the product. An ICP or ion standard is a solution of known concentration. A volumetric standard is for titration. A chromatography standard is the peak you match. The grade names, including pharmacopoeia and ASTM, say which impurities were limited. Identity is checked on PubChem. Names follow IUPAC. Medicinal grades follow the European Pharmacopoeia and USP.
Which category should I open next?
The category is Analytical standards & reference materials. The sub-category is Chromatography standards (GC, HPLC, pesticides). The catalogue is Lab chemicals.
Shelves beside this one are ICP, AAS & ion standards, Reference substances & reagents (other), Volumetric standard solutions (titration), Reagents for analysis (Ph. Eur., ASTM, DIN), Spectroscopy & physical property standards and Indicators & indicator solutions.
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Delivery across Europe, two to five days when in stock. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.