| CAS No. | 1138140-78-9 |
| Molecular Formula | C4H4O5 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 190.16 g/mol gives Butanedioic acid, 2-hydroxy-, calcium salt, hydrate (1:1:1) distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Butanedioic acid, 2-hydroxy-, calcium salt, hydrate (1:1:1) (CAS 1138140-78-9) is a high-purity analytical reference standard with the molecular formula C4H4O5CaH2O and a molecular weight of 190.16 g/mol.
Owing to a carbohydrate-derived structure, Butanedioic acid, 2-hydroxy-, calcium salt, hydrate (1:1:1) is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 190.16 g/mol — guide the selection of appropriate sample preparation and analytical techniques.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures Butanedioic acid, 2-hydroxy-, calcium salt, hydrate (1:1:1) 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.
| Molecular Formula | C4H4O5 Ca H2O |
| Molecular Weight | 190.16 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1989 |