Terephthalic acid-2,2′-<SUP>13</SUP>C<SUB>2</SUB> CAS 121191-53-5
| CAS No. | 121191-53-5 |
| Molecular Formula | C6[13C]2H6O4 |
| Molecular Weight | 168.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Terephthalic acid-2,2′-<SUP>13</SUP>C<SUB>2</SUB> (CAS 121191-53-5), molecular formula C6[13C]2H6O4 and molecular weight 168.12 g/mol, is a CATO reference standard with documented purity and traceability.
Terephthalic acid-2,2′-<SUP>13</SUP>C<SUB>2</SUB> (C6[13C]2H6O4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Terephthalic acid-2,2′-<SUP>13</SUP>C<SUB>2</SUB> under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C6[13C]2H6O4 |
| Molecular Weight | 168.12 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
Related Terephthalic Standards
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Why CATO?
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