rac threo-9,10-Dihydroxystearic Acid CAS 2391-05-1
| CAS No. | 2391-05-1 |
| Molecular Formula | C18H36O4 |
| Molecular Weight | 316.48 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of rac threo-9,10-Dihydroxystearic Acid is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
rac threo-9,10-Dihydroxystearic Acid (CAS 2391-05-1), molecular formula C18H36O4 and molecular weight 316.48 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of rac threo-9,10-Dihydroxystearic Acid (C18H36O4) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), rac threo-9,10-Dihydroxystearic Acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C18H36O4 |
| Molecular Weight | 316.48 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1957 |
Related rac Standards
- (+/-)-Threo-9,10-dihydroxy-12(Z)-octadecenoic acid (9R,10R,Z)-9,10-dihydroxyoctadec-12-enoic acid 263399-34-4 (CAS 263399-34-4)
- threo-12,13-Dihydroxy-9(Z)-octadecenoic acid (CAS 263399-35-5)
- threo-m-Chloramphenicol (CAS 138125-72-1)
- DL-threo-Chloramphenicol-d5 (CAS 1420043-66-8)
- DL-threo-Dihydrosphingosine (CAS 73938-69-9)
- D-threo-Sphingosine (CAS 6036-85-7)
- D-threo-1-(4-Sulfonylphenyl)-2-dichloroacetylamino-1,3-propanediol Sodium Salt (CAS 903508-30-5)
- threo-Guaiacylglycerol ß-coniferyl ether (CAS 869799-76-8)
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