(S)-2-(((benzyloxy)carbonyl)amino)-5-(tert-butoxy)-2-methyl-5-oxopentanoic acid CAS 135923-95-4
| CAS No. | 135923-95-4 |
| Molecular Formula | C18H25NO6 |
| Molecular Weight | 351.39 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), (S)-2-(((benzyloxy)carbonyl)amino)-5-(tert-butoxy)-2-methyl-5-oxopentanoic 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.
(S)-2-(((benzyloxy)carbonyl)amino)-5-(tert-butoxy)-2-methyl-5-oxopentanoic acid (CAS 135923-95-4) is a high-purity analytical reference standard with the molecular formula C18H25NO6 and a molecular weight of 351.39 g/mol.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, (S)-2-(((benzyloxy)carbonyl)amino)-5-(tert-butoxy)-2-methyl-5-oxopentanoic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 351.39 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C18H25NO6 |
| Molecular Weight | 351.39 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 |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Nitrogen Atoms | 1 |
Related S Standards
- (R)-6-(Benzyloxy)-3-((tert-butoxycarbonyl)amino)-6-oxohexanoic acid (CAS 1421258-63-0)
- (R)-3-(((Benzyloxy)carbonyl)amino)-6-(tert-butoxy)-6-oxohexanoic acid (CAS 2375165-41-4)
- (S)-3-(((Benzyloxy)carbonyl)amino)-6-(tert-butoxy)-6-oxohexanoic acid (CAS 2135655-76-2)
- (S)-6-(Benzyloxy)-2-((tert-butoxycarbonyl)amino)-6-oxohexanoic acid (CAS 80975-50-4)
- (S)-6-(Benzyloxy)-2-(tert-butoxycarbonylamino)-6-oxohexanoic acid (CAS 37051-23-3)
- 7-(Benzyloxy)-6-butyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 94278-93-0)
- 4-(Benzyloxy)-N-cyclopropyl-1-(4-fluorophenyl)-1H-pyrazole-3-carboxamide (CAS 1171661-82-7)
- N-(((Benzyloxy)carbonyl)oxy)-2-(quinolin-8-yloxy)acetimidamide (CAS 88758-51-4)
Recommended Standards
- (2S,4S)-1-(tert-Butoxycarbonyl)-4-(2-methoxy-4-methylphenoxy)-2-pyrrolidinecarboxylic acid (CAS 1354486-73-9)
- (3S,4R)-1-(tert-butoxycarbonyl)-4-(3,5-dimethoxyphenyl)pyrrolidine-3-carboxylic acid (CAS 1392210-31-9)
- (2S,4S)-1-(tert-butoxycarbonyl)-4-(4-ethoxyphenoxy)pyrrolidine-2-carboxylic acid (CAS 1354486-38-6)
- (3S,4R)-1-(tert-butoxycarbonyl)-4-(2,3-dimethoxyphenyl)pyrrolidine-3-carboxylic acid (CAS 1392214-13-9)
- Ethyl 1-(2,2-difluoroethyl)-3-nitro-1H-pyrazole-5-carboxylate (CAS 1384856-19-2)
- 4-Methyl-1-(2-nitro-4-(trifluoromethyl)phenyl)piperidine (CAS 392237-31-9)
- Methyl 3,6-Dibromopyrazine-2-carboxylate (CAS 13301-04-7)
- 1-(Tert-butylsulfonyl)-4-chlorobutane (CAS 126526-61-2)
- 2-(Dimethylamino)ethanethioamide dihydrochloride (CAS 1189503-42-1)
- 2,2,2-Trifluoroethyl n-[2-(pyrrolidin-1-yl)pyridin-3-yl]carbamate hydrochloride (CAS 1311315-79-3)
- 6-Ethyl-thieno[2,3-b]quinoline-2-carboxylic acid (CAS 462066-95-1)
- 4-Isopropylbenzotrifluoride (CAS 32445-99-1)
- 1-(7-Hydroxy-2,3-dihydro-1H-inden-4-yl)ethanone (CAS 28179-01-3)
- Des-Gly34-Tirzepatide (CAS CATO-CPTD788940)
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