3,18-Diethyl-1,4,5,15,16,19,22,24-octahydro-2,7,13,17-tetramethyl-1,19-dioxo-21H-biline-8,12-dipropanoic acid CAS 1856-98-0
| CAS No. | 1856-98-0 |
| Molecular Formula | C33H42N4O6 |
| Molecular Weight | 590.71 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3,18-Diethyl-1,4,5,15,16,19,22,24-octahydro-2,7,13,17-tetramethyl-1,19-dioxo-21H-biline-8,12-dipropanoic acid (CAS 1856-98-0), molecular formula C33H42N4O6 and molecular weight 590.71 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 3,18-Diethyl-1,4,5,15,16,19,22,24-octahydro-2,7,13,17-tetramethyl-1,19-dioxo-21H-biline-8,12-dipropanoic acid (C33H42N4O6) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 15.0, corresponding to approximately 15 ring(s) or double-bond equivalent(s). With a molecular weight of 590.71 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
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 | C33H42N4O6 |
| Molecular Weight | 590.71 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 4 |
Related Diethyl Standards
- (4S)-4,11-Diethyl-3,4,12,14-tetrahydro-3,14-dioxo-1H-pyrano[3',4':6,7]indolizino[1,2-b]quinoline-4,9-diyl bis(2-methylpropyl) Ester Carbonic Acid (CAS 848078-06-8)
- Diethyl 4,4'-((2-((5-(4-chlorophenyl)furan-2-yl)methylene)malonyl)bis(azanediyl))dibenzoate (CAS 373613-93-5)
- Diethyl 2,2'-((32,72-dihydroxy-1,3,5,7(1,3)-tetrabenzenacyclooctaphane-12,52-diyl)bis(oxy))diacetate (CAS 142267-55-8)
- Diethyl (1H,1H,2H,2H-heptadecafluorodec-1-yl)phosphonate (CAS 90146-96-6)
- Diethyl 1-isopropyl-4,5-dioxopyrrolidine-2,3-dicarboxylate (CAS 7399-13-5)
- Diethyl 2-((3-chlorophenyl)amino)malonate (CAS 6626-01-3)
- Diethyl 3,5-diphenyl-1H-pyrrole-2,4-dicarboxylate (CAS 3651-14-7)
- (S)-7,14-Diethyl-7-hydroxy-8,11-dioxo-7,8,9,10,11,13-hexahydrobenzo-[6,7]indolizino[1,2-b]quinolin-2-yl 8-(hydroxyamino)-8-oxooctanoate 1706437-51-5 (CAS 1706437-51-5)
Recommended Standards
- 5-(3-(4,6-Diphenyl-1,3,5-triazin-2-yl)phenyl)-7,7-dimethyl-5,7-dihydroindeno[2,1-b]carbazole (CAS 1257248-13-7)
- (R)-3,3'-Bis([1,1'-biphenyl]-4-yl)-[1,1'-binaphthalene]-2,2'-diol (CAS 215433-52-6)
- Poly(ethylene glycol) 600 (CAS 17598-96-8)
- (S)-3,3'-Bis([1,1'-biphenyl]-4-yl)-[1,1'-binaphthalene]-2,2'-diol (CAS 220486-43-1)
- 2-(2-Amino[1,3]thiazolo[4,3-b]-[1,3,4]thiadiazol-5-yl)phenol (CAS 137609-25-7)
- Bis(2-ethylhexyl) Isophthalate (CAS 137-89-3)
- Methyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indazole-6-carboxylate (CAS 1527007-77-7)
- 1-Cyclohexyl-5,6-dihydrocyclopenta[c]pyrazol-4(1H)-one (CAS 1447953-40-3)
- 3-Fluoro-2-methyl-N-(1,2,3-thiadiazol-4-ylmethyl)aniline (CAS 1248823-75-7)
- 2-[(2-cyanoethyl)amino]-3-phenylpropanoic acid (CAS 15095-74-6)
- Diisoproxymethylborane (CAS 86595-27-9)
- 3-(2-oxo-1,3-oxazolidin-3-yl)propanethioamide (CAS 127914-07-2)
- Verrucarin A (CAS 3148-09-2)
- Macrophage Inhibitory Peptide (CAS 41961-56-2)
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