Fmoc-Abu-OH CAS 135112-27-5
| CAS No. | 135112-27-5 |
| Molecular Formula | C19H19NO4 |
| Molecular Weight | 325.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Fmoc-Abu-OH is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Fmoc-Abu-OH (CAS 135112-27-5), molecular formula C19H19NO4 and molecular weight 325.36 g/mol, is a CATO reference standard with documented purity and traceability.
Fmoc-Abu-OH (C19H19NO4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
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 | C19H19NO4 |
| Molecular Weight | 325.36 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Nitrogen Atoms | 1 |
Related Fmoc Standards
- Fmoc-Ala-OMe (CAS 146346-88-5)
- N-Fmoc-N-Methyl-beta-alanine (CAS 172965-84-3)
- Fmoc-DL-ß-aminobutyric acid (CAS 186320-18-3)
- (S)-3-(Fmoc-amino)butanoic Acid (CAS 193954-26-6)
- (R)-3-(Fmoc-amino)-2-methylpropanoic Acid (CAS 211682-15-4)
- Fmoc-Aib-OH (CAS 94744-50-0)
- Fmoc-D-Abu-OH (CAS 170642-27-0)
- Fmoc-N-Me-Ala-OH (CAS 84000-07-7)
Recommended Standards
- Crotaline (CAS 315-22-0)
- Famciclovir-d4 (CAS 1020719-42-9)
- Finerenone Impurity 85 (CAS CATO-C4X-288085)
- Papaverine Impurity 17 (CAS 18783-43-2)
- Benzoin Benzoate (CAS 1459-20-7)
- 5-(1-chloroethyl)-3-phenyl-4,5-dihydro-1,2-oxazole (CAS 64984-97-0)
- (1-Benzyl-2-phenylethyl)amine hydrochloride (CAS 7763-96-4)
- Aprepitant Impurity 81 (CAS CATO-C4X-114181)
- 3-Chlorobenzo[d]isoxazol-7-ol (CAS 155645-24-2)
- (2R,3R,4R,5R)-2-((Bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-5-(4-(2-(4-(tert-butyl)phenoxy)acetamido)-2-oxopyrimidin-1(2H)-yl)-4-((tert-butyldimethylsilyl)oxy)tetrahydrofuran-3-yl (2-cyanoethyl) diisopropylphosphoramidite (CAS 149989-68-4)
- 3-((Tert-butoxycarbonyl)amino)-2-(3-methylbenzyl)propanoic acid (CAS 886364-89-2)
- 5-(5-Formylfuran-2-yl)-2-methylbenzoic acid (CAS 461429-48-1)
- (3-Methyl-pyridin-2-yl)-(4-piperidin-3-yl-pyrimidin-2-yl)-amine dihydrochloride (CAS 1361111-30-9)
- Semaglutide Impurity 167 (CAS CATO-C4X-2226167)
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