Diethyl L-(-)-Malate CAS 691-84-9
| CAS No. | 691-84-9 |
| Molecular Formula | C8H14O5 |
| Molecular Weight | 190.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Diethyl L-(-)-Malate (CAS 691-84-9), molecular formula C8H14O5 and molecular weight 190.19 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, Diethyl L-(-)-Malate is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 190.19 g/mol — guide the selection of appropriate sample preparation and analytical techniques.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H14O5 |
| Molecular Weight | 190.19 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1957 |
Related Diethyl Standards
- Diethyl 2-(hydroxymethyl)malonate (CAS 23904-38-3)
- Diethyl 2,2'-oxydiacetate (CAS 6634-17-9)
- Diethyl 2-methoxymalonate (CAS 40924-27-4)
- Diethyl Methyltartronate (CAS 58567-05-8)
- (R)-Diethyl 2-Hydroxysuccinate (CAS 7554-28-1)
- Diethyl DL-Malate (CAS 7554-12-3)
- Diethyl methylenedicarbamate (CAS 3693-53-6)
- 1,1'-Diethyl-1H,1'H-2,2'-biimidazole (CAS 37572-50-2)
Recommended Standards
- Diethylene glycol Diacetate (CAS 628-68-2)
- (2-Hydroxyethyl) hydrogen adipate (CAS 94109-19-0)
- 4,4′-Difluorobiphenyl (CAS 398-23-2)
- 3-((Cyanomethyl)amino)-2-methylbenzoicacid (CAS 1000340-07-7)
- 2-Methyl-5-nitrobenzonitrile (CAS 939-83-3)
- Mozavaptan (CAS 137975-06-5)
- 2-Boc-2,7-diazaspiro[3.5]nonane (CAS 236406-55-6)
- 2,2-Difluoro-N-methylbenzo[d][1,3]dioxol-5-amine (CAS 1021036-78-1)
- 5-Hydroxy-2-vinylbenzaldehyde (CAS 1313762-42-3)
- 4-Bromo-1-ethyl-2-methoxybenzene (CAS 876299-65-9)
- (1S,3S,6R)-7,7-Difluorobicyclo[4.1.0]heptan-3-amine hydrochloride (CAS 2218436-87-2)
- N,2-dimethyl-4-oxo-2,3,4,5-tetrahydro-1H-benzo[b][1,4]diazepine-1-carboxamide (CAS 89647-52-9)
- 3-Amino-1-(2-isopropoxyethyl)pyridin-2(1h)-one (CAS 1248623-89-3)
- α Bag Cell Peptide (1-9) (CAS 87549-52-8)
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