Maleimide-PEG<SUB>12</SUB>-succinimidyl ester CAS 1426151-00-9
| CAS No. | 1426151-00-9 |
| Molecular Formula | C38H63N3O19 |
| Molecular Weight | 865.92 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Maleimide-PEG<SUB>12</SUB>-succinimidyl ester (CAS 1426151-00-9) is a high-purity analytical reference standard with the molecular formula C38H63N3O19 and a molecular weight of 865.92 g/mol.
Structurally, Maleimide-PEG<SUB>12</SUB>-succinimidyl ester (C38H63N3O19) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 865.92 g/mol, it falls into the high-molecular-weight range. 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.
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 | C38H63N3O19 |
| Molecular Weight | 865.92 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 |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 3 |
Related Maleimide Standards
- Maleimide-PEG<SUB>6</SUB>-succinimidyl ester (CAS 1137109-21-7)
- Maleimide-DOTA (CAS 1006711-90-5)
- Maleimide-NOTA (CAS 1295584-83-6)
- Maleimide-C10-NHS ester (CAS 87981-04-2)
- 3005-27-4 Maleimide, dibromo-N-methyl- Maleimide, 2,3-dibromo-N-methyl- (8CI) 1H-Pyrrole-2,5-dione, 3,4-dibromo-1-methyl- (9CI) 5-21-10-00050 (Beilstein Handbook Reference) BRN 0129149 N-Methyl-2,3-dibromomaleimide N-Methyl-dibromomaleinimide NSC 120444 (CAS 3005-27-4)
Recommended Standards
- 1-Benzyl-3,4-bis((8,9,10,11,12,13,14,15-octahydrodinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin-4-yl)oxy)pyrrolidine-2,5-dione (CAS 1417651-63-8)
- Mal-amido-PEG12-NHS ester (CAS 2101722-60-3)
- 2-O-(2-Deoxy-2-N-phthalimido-3,4,6-tri-O-acetyl-β-D-glucopyranosyl)-3-O-benzyl-4,6-O-benzylidene-α-D-mannose (CAS 865488-82-0)
- KT474 (CAS 2432994-31-3)
- 6-Chloroquinolin-4-ol (CAS 23432-43-1)
- 3,8-Dimethyl-5,6,7,8-tetrahydroquinoline-8-carbothioamide (CAS 61418-00-6)
- Methyl 5-bromo-3-chloro-2-methoxybenzoate (CAS 722497-31-6)
- (S)-1-(3-chloro-4-(trifluoromethyl)phenyl)propan-1-amine (CAS 1213877-02-1)
- 9-Decenal (CAS 39770-05-3)
- 4-Isopropylcalix[4]arene (CAS 97998-55-5)
- Methyl 3-hydroxy-5-methylthiophene-2-carboxylate (CAS 5556-22-9)
- Tert-butyl 3-(2-aminoethyl)-1H-indole-1-carboxylate (CAS 167015-84-1)
- 6-CHLOROPURINE RIBOSIDE (CAS 2004-06-0)
- Semaglutide Impurity 121 X Sodium Salt (CAS CATO-C4X-2226121)
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