D-Isoleucine CAS 319-78-8
| CAS No. | 319-78-8 |
| Molecular Formula | C6H13NO2 |
| Molecular Weight | 131.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), D-Isoleucine 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.
D-Isoleucine (CAS 319-78-8) is a high-purity analytical reference standard with the molecular formula C6H13NO2 and a molecular weight of 131.17 g/mol.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, D-Isoleucine is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 131.17 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C6H13NO2 |
| Molecular Weight | 131.17 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
Related D Standards
- Dl-Isoleucine (CAS 443-79-8)
- L-Isoleucine (CAS 73-32-5)
- L-ISOLEUCINE-15N (CAS 59935-30-7)
- L-Isoleucine-2-d1 (CAS 127290-60-2)
- L-Isoleucine N-Carboxyanhydride (CAS 45895-90-7)
- L-isoleucine isopropyl amide (CAS 1820583-52-5)
- L-Isoleucine, L-norvalyl- (CAS 200618-43-5)
- L-Isoleucine hydrochloride (CAS 17694-98-3)
Recommended Standards
- D-Leucine (CAS 328-38-1)
- L-Norleucine (CAS 327-57-1)
- DL-Norleucine (CAS 616-06-8)
- D-Norleucine (CAS 327-56-0)
- 2-Chloro-4-methyl-3,4'-bipyridine (CAS 1214343-79-9)
- H-α-Me-Phe-OH (CAS 23239-35-2)
- 3-(Difluoromethoxy)-2-nitropyridine (CAS 1111637-77-4)
- 2,7-Dimethylquinolin-4-amine (CAS 689277-65-4)
- 6-Chlorobenzo[j]phenanthridine (CAS 2178-33-8)
- 5-Bromo-2-N-ethylpyridine-2,3-diamine, 97% (CAS 1216240-73-1)
- 2,2,2-Trifluoro-1,1-bis(4-methoxyphenyl)ethanol (CAS 379-21-5)
- 4-Cyclopropoxy-3-ethyl-5-isopropoxypyridine (CAS 1243447-38-2)
- 6-(2,6-Dichlorobenzyl)-2-(3,4-dichlorophenyl)-5,7-dimethylpyrazolo[1,5-a]pyrimidine (CAS 477858-94-9)
- [14-31]-Semaglutide (CAS CATO-C4X-2226262)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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