Mono-2-hydroxybutyl Phthalate CAS 856985-72-3
| CAS No. | 856985-72-3 |
| Molecular Formula | C12H14O5 |
| Molecular Weight | 238.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Mono-2-hydroxybutyl Phthalate.
Mono-2-hydroxybutyl Phthalate (CAS 856985-72-3) is a high-purity analytical reference standard with the molecular formula C12H14O5 and a molecular weight of 238.24 g/mol.
The molecular framework of Mono-2-hydroxybutyl Phthalate (C12H14O5) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
As a certified reference material (CRM), Mono-2-hydroxybutyl Phthalate 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 | C12H14O5 |
| Molecular Weight | 238.24 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
Related Mono Standards
- Mono(2-hydroxyisobutyl)phthalate (CAS 64339-39-5)
- Mono(3-hydroxybutyl)phthalate (CAS 57074-43-8)
- Mono(4-pentenyl)phthalate-d4 (CAS 1346601-95-3)
- Mono(2E-pentenyl) Phthalate-d4 (CAS 1795141-13-7)
- Mono(2-carboxyethyl) Phthalate (CAS 92569-47-6)
- 1794753-19-7 Mono(2-carboxyethyl) Phthalate-d4 (CAS 1794753-19-7)
- Mono-(2E-pentenyl) Phthalate (CAS 1334376-71-4)
- Mono(carboxymethyl) Phthalate-d4 (CAS 1346600-11-0)
Recommended Standards
- N-([1,2,4]triazolo[1,5-a]pyridin-8-yl)benzamide (CAS 338406-04-5)
- n-(1h-Benzo[d]imidazol-2-yl)nicotinamide (CAS 27111-31-5)
- Methyl phenazine-1-carboxylate (CAS 3225-19-2)
- n-(1h-Indazol-5-yl)nicotinamide (CAS 908510-67-8)
- 1-(3,5-Dichlorophenyl)-3-(4-phenylpiperazin-1-yl)pyrrolidine-2,5-dione (CAS 301194-50-3)
- 2-Bromo-4-iodo-1-(trifluoromethyl)benzene (CAS 1369927-31-0)
- N-{[(3-nitrophenyl)carbamoyl]amino}methoxyformamide (CAS 903041-05-4)
- 5-(2,4-Difluorophenyl)nicotinamide (CAS 1346691-67-5)
- 2-((1H-Pyrazolo[3,4-b]pyrazin-5-yl)amino)ethanol (CAS 116527-66-3)
- Flavensomycin (CAS 29382-82-9)
- 2-[2-(4-Methoxyphenyl)-1-pyrrolidinyl]acetamide (CAS 1088200-43-4)
- 5-Hydroxy-4-(naphthalen-2-yl)isoquinolin-1(2H)-one (CAS 656234-36-5)
- 1,3-Difluoro-2-(4-iodophenoxy)benzene (CAS 1414356-26-5)
- Cholecystokinin Octapeptide (desulfated) (H-2070.0005) (CAS 198483-36-2)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com