Methyltetrazine-PEG4-acid CAS 1802907-91-0
| CAS No. | 1802907-91-0 |
| Molecular Formula | C20H28N4O7 |
| Molecular Weight | 436.46 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 436.46 g/mol gives Methyltetrazine-PEG4-acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Methyltetrazine-PEG4-acid (CAS 1802907-91-0), molecular formula C20H28N4O7 and molecular weight 436.46 g/mol, is a CATO reference standard with documented purity and traceability.
Methyltetrazine-PEG4-acid (C20H28N4O7) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, 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.
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 | C20H28N4O7 |
| Molecular Weight | 436.46 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Nitrogen Atoms | 4 |
Related Methyltetrazine Standards
- Methyltetrazine-Sulfo-NHS ester (sodium) (CAS 1821017-46-2)
- Methyltetrazine-PEG4-NH-Boc (CAS 2194563-84-1)
- Methyltetrazine-PEG5-alkyne (CAS 1802907-97-6)
- Methyltetrazine-Ph-PEG4-azide (CAS 1802908-04-8)
- Methyltetrazine-amido-PEG5-alkyne (CAS 2322322-23-4)
- Methyltetrazine-PEG4-amine (CAS 1802908-05-9)
- Methyltetrazine-PEG4-maleimide (CAS 1802908-02-6)
- Methyltetrazine-PEG5-NHS ester (CAS 1802907-92-1)
Recommended Standards
- 3-[1-(2H-1,3-Benzodioxole-5-carbonyl)piperidin-4-yl]-4-[(4-methoxyphenyl)methyl]-4,5-dihydro-1H-1,2,4-triazol-5-one (CAS 1775380-33-0)
- (2R,4R)-4-Alloc-amino-1-Fmoc-Pyrrolidine-2-carboxylic acid (CAS 273222-05-2)
- (S)-3-FmocNH-1-Alloc-pyrrolidine-3-carboxylic acid (CAS 1629579-50-5)
- (2R,4S)-4-Alloc-amino-1-Fmoc-Pyrrolidine-2-carboxylic acid (CAS 549534-58-9)
- 6-Ethoxy-2-methylquinoline-3-carboxylic acid (CAS 948289-62-1)
- N-(4-Amino-3-hydroxyphenyl)acetamide (CAS 129697-50-3)
- Fluroxypyr-2-methoxy (CAS 35622-80-1)
- N-(4H-1,2,4-Triazol-4-yl)-4,5,6,7-tetrahydrobenzo[b]thiophene-2-carboxamide (CAS 717872-62-3)
- 1-(4-Ethylbenzo[d]thiazol-2-yl)azetidine-3-carboxylic acid (CAS 1283108-73-5)
- 3-(4-Chloro-3-nitrophenyl)-5-methyl-1H-1,2,4-triazole (CAS 648917-59-3)
- 6-(4-Chlorophenyl)-2,3-dimethylimidazo[1,2-b][1,2,4]triazine (CAS 53454-45-8)
- N-(5-Acetamido-2-methoxyphenyl)-2-((3-ethyl-4-oxo-3,4,5,6,7,8-hexahydrobenzo[4,5]thieno[2,3-d]pyrimidin-2-yl)thio)acetamide (CAS 578746-77-7)
- 4,7-Methanoisobenzofuran-1,3-dione, 3a,4,7,7a-tetrahydro-, polymer with 1,4-benzenediol and 1,2-propanediol (CAS 83864-25-9)
- Hexapeptide-9 (CAS 885024-94-2)
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