L-Lactide CAS 4511-42-6
| CAS No. | 4511-42-6 |
| Molecular Formula | C6H8O4 |
| Molecular Weight | 144.13 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 L-Lactide.
L-Lactide (CAS 4511-42-6), molecular formula C6H8O4 and molecular weight 144.13 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, L-Lactide is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 144.13 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 | C6H8O4 |
| Molecular Weight | 144.13 g/mol |
| Purity | >95% |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1958 |
Related L Standards
- D-(+)-Lactide (CAS 13076-17-0)
- Poly(lactide-co-glycolide)-1,2 hexadiol initiated (55:45 LA:GA, Mn: 25,000-35,000Da) (CAS CATO-C3D-263084)
- Poly(lactide-co-glycolide) 3-arm trimethylolpropane Initiated (55:45 LA:GA, Mn 40,000 – 60,000 Da) (CAS CATO-C3D-263085)
- Poly(lactide-co-glycolide) 4-arm pentaerythritol initiated (55:45 LA:GA, Mn 40,000 – 60,000 Da) (CAS CATO-C3D-263086)
- Poly (lactide-co-glycolide) 5-Arm, Adonitol initiated (Mn: 40,000 – 60,000 Da) (CAS CATO-C3D-263087)
- Poly(lactide-co-glycolide) 6-arm dipentaerythritol initiated (55:45 LA:GA, Mn 40,000 – 60,000 Da) (CAS CATO-C3D-263088)
- D-lactide-Threonine-Octreotide (CAS CATO-C4X-152017)
- L-lactide-Threonine-Octreotide (CAS CATO-C4X-152018)
Recommended Standards
- 1,1-Cyclobutanedicarboxylic Acid (CAS 5445-51-2)
- N-Nitroso Proline (CAS 2571-28-0)
- 1,1-Cyclopropanedicarboxylic acid monomethyl ester (CAS 113020-21-6)
- Furacillin impurity 2 (CAS CATO-C4X-28052)
- 2-[(4-Methoxyphenyl)methyl]-N-phenyl-1,3-thiazole-4-carboxamide (CAS 478030-34-1)
- tert-Butyl 2-(6-thioxo-1,6-dihydropyridin-3-yl)piperidine-1-carboxylate (CAS 1352488-18-6)
- Methacrylaldehyde-2,4-dinitrophenylhydrazone (CAS 5077-73-6)
- (10R,13R,14R,17R)-17-((2R,5R,E)-5,6-dimethylhept-3-en-2-yl)-3,5,9-trihydroxy-10,13-dimethyl-2,3,4,5,9,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-6(10H)-one 88191-14-4 (CAS 88191-14-4)
- Trans-4-Chloro-2-Butene-1-ol (CAS 1576-93-8)
- 8-Oxo-8-(3,4,5-trimethoxyphenyl)octanoic acid (CAS 951891-91-1)
- Methyl 1-amino-4-cyano-1H-pyrrole-2-carboxylate (CAS 1000313-12-1)
- 2,5,6,7,8,9-hexahydropyrido[4,3-b]indol-1-one (CAS 55052-69-2)
- 4-Phenyl-5-(pyridin-4-yl)-1H-pyrazol-3-amine (CAS 148611-84-1)
- Semaglutide impurity 229 (CAS CATO-C4X-2226229)
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