2,5-Bis(1,1-dimethylethyl) 3,6-bis(5-bromo-2-thienyl)-1,4-dioxopyrrolo[3,4-c]pyrrole-2,5(1H,4H)-diacetate CAS 1815587-98-4
| CAS No. | 1815587-98-4 |
| Molecular Formula | C26H26Br2N2O6S2 |
| Molecular Weight | 686.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2,5-Bis(1,1-dimethylethyl) 3,6-bis(5-bromo-2-thienyl)-1,4-dioxopyrrolo[3,4-c]pyrrole-2,5(1H,4H)-diacetate.
2,5-Bis(1,1-dimethylethyl) 3,6-bis(5-bromo-2-thienyl)-1,4-dioxopyrrolo[3,4-c]pyrrole-2,5(1H,4H)-diacetate (CAS 1815587-98-4), molecular formula C26H26Br2N2O6S2 and molecular weight 686.43 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2,5-Bis(1,1-dimethylethyl) 3,6-bis(5-bromo-2-thienyl)-1,4-dioxopyrrolo[3,4-c]pyrrole-2,5(1H,4H)-diacetate (C26H26Br2N2O6S2) is characterized by a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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), 2,5-Bis(1,1-dimethylethyl) 3,6-bis(5-bromo-2-thienyl)-1,4-dioxopyrrolo[3,4-c]pyrrole-2,5(1H,4H)-diacetate 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 | C26H26Br2N2O6S2 |
| Molecular Weight | 686.43 g/mol |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Bis Standards
- 2,5-Bis(1,1-dimethylethyl) 3,6-bis(5-bromo-2-thienyl)-1,4-dioxopyrrolo[3,4-c]pyrrole-2,5(1H,4H)-dicarboxylate (CAS 1046864-84-9)
- 2-[Bis[4-(1,1-dimethylethyl)phenyl]phosphino]-N-[(8α,9S)-6′-methoxycinchonan-9-yl]benzamide (CAS 2407524-33-6)
- 1,1-Dimethylethyl-N-(2-fluoro-4-iodophenyl)-N-[[(2-fluoro-4-iodophenyl)amino]carbonyl]carbamate (CAS 1033201-49-8)
- 10-[2,12-Bis(1,1-dimethylethyl)[1,4]benzoxaborino[2,3,4-kl]phenoxaborin-7-yl]-9,10-dihydro-9,9-dimethylacridine (CAS 2378498-82-7)
- (E)-7-[5-[[[(1,1-Dimethylethyl)dimethylsilyl]oxy]methyl]-4-(4-fluorophenyl)-2,6-bis(1-methylethyl)-3-pyridinyl]-5-hydroxy-3-oxo-6-heptenoic Acid Methyl Ester 124863-85-0 Methyl rac-(E)-7-[5-tert-Butyldimethylsilyloxymethyl-2,6-diisopropyl-4-(4-fluorophenyl)-3-pyridinyl]-5-hydroxy-3-oxo-6-heptenoate (CAS 124863-85-0)
- [2-[4-(1,1-Dimethylethyl)phenyl]-2-oxoethyl]phenyl[1,2-phenylenebis[diphenylphosphine-κP]]palladium (CAS 727722-22-7)
- 1,1-[(1,1-Dimethylethyl)[[(1R,2E,4E)-5-iodo-1-[3-(trimethylsilyl)-2-propyn-1-yl]-2,4-pentadien-1-yl]oxy]silylene]bis-benzene (CAS 1220354-19-7)
- [4-(1,1-Dimethylethyl)phenyl][2-(4-methylphenyl)-2-oxoethyl][1,2-phenylenebis[diphenylphosphine-κP]]palladium (CAS 351531-07-2)
Recommended Standards
- Hydrazinecarbothioamide, 2,2'-(1,2-diphenyl-1,2-ethanediylidene)bis[N-[(4-ethoxyphenyl)methyl]-, copper complex (CAS 124010-93-1)
- 4-(3-Nitrobenzylidene)-2-phenyloxazol-5(4H)-one (CAS 15601-45-3)
- Delafloxacin Impurity 17 (CAS CATO-C4X-263717)
- (9H-fluoren-9-yl)methyl N-(2-((4-(4-(3-bromo-4-fluorophenyl)-5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)-1,2,5-oxadiazol-3-yl)amino)ethyl)sulfamoylcarbamate (CAS 1771804-78-4)
- N-(2-aminoethyl)-5-chlorothiophene-2-carboxamide (CAS 1252974-49-4)
- (1-Bromo-3-chloropropyl)benzene (CAS 21763-00-8)
- 2-Amino-1-(2,4,5-trimethoxyphenyl)ethan-1-one (CAS 1379915-16-8)
- (1-(3-Chlorophenyl)cyclopropyl)methanol (CAS 98480-33-2)
- 2,4-Dichloro-6-(((2-methoxyethyl)amino)methyl)phenol (CAS 1019599-03-1)
- 2-(3-Fluorophenyl)-3-(hydroxymethyl)pyrazolo[1,5-a]pyrazin-4(5H)-one (CAS 1416347-01-7)
- (3R)-4-(Benzyloxy)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanoic acid (CAS 1233495-08-3)
- 3-(Thiophen-2-yl)quinoxalin-2-ol (CAS 64532-10-1)
- 9-Chloro-2,3,4,5-tetrahydrobenzo[b]oxepin-5-amine (CAS 1094299-22-5)
- Semaglutide impurity 67 (CAS CATO-C4X-222667)
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