Amyloid β-Protein (31-35) CAS 149385-65-9
| CAS No. | 149385-65-9 |
| Molecular Formula | C25H47N5O6S |
| Molecular Weight | 545.74 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Amyloid β-Protein (31-35) (CAS 149385-65-9) is a high-purity analytical reference standard with the molecular formula C25H47N5O6S and a molecular weight of 545.74 g/mol.
Owing to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Amyloid β-Protein (31-35) is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 545.74 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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), Amyloid β-Protein (31-35) 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.
Physical & Chemical Properties
| Molecular Formula | C25H47N5O6S |
| Molecular Weight | 545.74 g/mol |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1999 |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |
Related Amyloid Standards
- Amyloid β-Protein (16-20) (CAS 153247-40-6)
- Amyloid b/A4 Protein Precursor770 (403-407) (H-1608.0025) (CAS 148914-08-3)
- Acetyl-Amyloid β-Protein (15-20) amide (CAS 189064-06-0)
- (Lys15)-Amyloid β-Protein (15-21) (CAS 190775-14-5)
- Amyloid β-Protein (36-38) (CAS 21835-35-8)
- Amyloid β-Protein (37-39) (CAS 20274-89-9)
- Amyloid β-Protein (33-42) (CAS 178949-81-0)
- (Nle35)-Amyloid b-Protein (25-35) 163265-32-5 (CAS 163265-32-5)
Recommended Standards
- 5-(Bis(4-methoxybenzyl)amino)-6-methyl-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-pyrrolo[3,2-b]pyridine-2-carbaldehyde (CAS 2891457-69-3)
- 1-[(2R,3S)-4-[(4-Chloro-1,1,2,2,3,3,4,4-octafluorobutyl)sulfonyl]-5-methyl-3-(4-nitrophenyl)-2,3-dihydro-2-furanyl]ethanone (CAS 771491-74-8)
- Taurocholic Acid-d8 Sodium Salt (CAS 1351996-69-4)
- 4-[(4-Acetyl-1-piperazinyl)methyl]-N-[4-methyl-3-[(4-(3-pyridinyl)-2-pyrimidinyl)amino]phenyl]benzamide (CAS 1321600-77-4)
- 1417568-79-6 6-(2-Fluorophenyl)-3-methylimidazo[2,1-b]-[1,3]thiazole-2-carboxylic acid hydrochloride (CAS 1417568-79-6)
- Ethyl 8-cyano-4-(dimethylamino)quinoline-3-carboxylate (CAS 1279209-06-1)
- 3-([2,2'-Bipyridin]-5-yl)-2-aminopropanoic acid (CAS 1219368-79-2)
- 4-Ethylthiazole-2-carbaldehyde (CAS 211943-05-4)
- 5-(2,3-Dihydro-1,4-benzodioxin-6-yl)-1,3-oxazole-4-carboxylic acid (CAS 1240165-83-6)
- [1-(2,2-difluoroethyl)-1H-pyrazol-3-yl]methanol (CAS 1260659-08-2)
- N-[(1,1-Dimethylethoxy)carbonyl]-L-phenylalanyl-L-proline (CAS 23420-32-8)
- tert-Butyl 5-bromo-3-chloro-1H-pyrazolo[3,4-c]pyridine-1-carboxylate (CAS 929617-43-6)
- (R)-3-amino-4-(4-bromophenyl)butanoic acid (CAS 773045-17-3)
- Lixisenatide (CAS 320367-13-3（free base）)
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