1,2-Cyclohexanedicarboxylic Anhydride CAS 85-42-7
| CAS No. | 85-42-7 |
| Molecular Formula | C8H10O3 |
| Molecular Weight | 154.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 154.16 g/mol gives 1,2-Cyclohexanedicarboxylic Anhydride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
1,2-Cyclohexanedicarboxylic Anhydride (CAS 85-42-7) is a high-purity analytical reference standard with the molecular formula C8H10O3 and a molecular weight of 154.16 g/mol.
Based on its molecular formula C8H10O3, 1,2-Cyclohexanedicarboxylic Anhydride contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 154.16 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C8H10O3 |
| Molecular Weight | 154.16 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Cyclohexanedicarboxylic Standards
- cis-1,2-Cyclohexanedicarboxylic Anhydride (CAS 13149-00-3)
- (+/-)-Trans-1,2-Cyclohexanedicarboxylic Anhydride (CAS 14166-21-3)
- 1,2-Cyclohexanedicarboxylic Acid (CAS 1687-30-5)
- cis-1,3-Cyclohexanedicarboxylic Acid (CAS 2305-31-9)
- 3971-31-1 1,3-Cyclohexanedicarboxylic acid (cis- and trans- mixture) MFCD00134411 (CAS 3971-31-1)
- cis-1,2-Cyclohexanedicarboxylic Acid (CAS 610-09-3)
- 1,4-Cyclohexanedicarboxylic Acid(Mixture of cis and trans isomers) (CAS 1076-97-7)
- 5-Oxo-1,3-cyclohexanedicarboxylic acid (CAS 90954-19-1)
Recommended Standards
- Furfuryl Propionate (CAS 623-19-8)
- 2,3-Dimethoxyphenol (CAS 5150-42-5)
- 2,6-Dimethoxyphenol (CAS 91-10-1)
- Methacrylic Anhydride (CAS 760-93-0)
- 3-Bromo-5-(trifluoromethoxy)pyridin-2-ol (CAS 1361837-97-9)
- tert-Butyl 4-chloro-2-hydroxybenzoate (CAS 1092460-52-0)
- 1-(2-Bromophenyl)-2-(methylthio)ethan-1-one (CAS 1184554-64-0)
- 2-[(3-bromo-4-methoxyphenyl)methyl]-3-hydroxypropanenitrile (CAS 1275190-08-3)
- 4-(3-(2-Fluorophenyl)-1,2,4-oxadiazol-5-yl)-1-phenylpyrrolidin-2-one (CAS 941917-62-0)
- 3-(4-Amino-2-chlorobenzamido)propanoic acid (CAS 1189749-56-1)
- (5-Methyl-1,2,4-oxadiazol-3-yl)(2-(trifluoromethoxy)phenyl)methanamine (CAS 1153759-38-6)
- 2-Vinylthiazole-4-carboxylic acid (CAS 1086380-20-2)
- 1233501-68-2 2,6-Dichloro-4-(trifluoromethyl)benzenesulfinic acid sodium salt MFCD11618043 (CAS 1233501-68-2)
- Insulin Degludec Impurity 24 (CAS CATO-C4X-215724)
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