1,1'-Methylenebis(1H-pyrazole-4-carboxylic acid) CAS 2610635-91-9
| CAS No. | 2610635-91-9 |
| Molecular Formula | C9H8N4O4 |
| Molecular Weight | 236.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
1,1'-Methylenebis(1H-pyrazole-4-carboxylic acid) (CAS 2610635-91-9) is a high-purity analytical reference standard with the molecular formula C9H8N4O4 and a molecular weight of 236.18 g/mol.
Structurally, 1,1'-Methylenebis(1H-pyrazole-4-carboxylic acid) (C9H8N4O4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 236.18 g/mol, it falls into the medium-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).
CATO manufactures 1,1'-Methylenebis(1H-pyrazole-4-carboxylic acid) under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H8N4O4 |
| Molecular Weight | 236.18 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2001 |
| Nitrogen Atoms | 4 |
Related Methylenebis Standards
- 5,5'-Methylenebis(pyrimidine-2,4(1H,3H)-dione) (CAS 1758-94-7)
- 5,5'-Methylenebis(furan-2-carboxylic acid) (CAS 91136-80-0)
- 4,4＇-Methylenebis(2-methylcyclohexylamine) (mixture of isomers) (CAS 6864-37-5)
- 4,4'-Methylenebis(2-aminophenol) (CAS 16523-28-7)
- 5,5'-Methylenebis(2-aminophenol) (CAS 22428-30-4)
- 2,2'-Methylenebis(4-methylphenol) (CAS 3236-63-3)
- 4,4'-Methylenebis(2-methylphenol) (CAS 2467-25-6)
- 4,4'-Methylenebis(N-methylaniline) (CAS 1807-55-2)
Recommended Standards
- 1-(4-Hydroxy-3-nitrophenyl)pyrrolidine-2,5-dione (CAS 48166-64-9)
- 1-Methyl-3-(5-nitrofuran-2-yl)-1H-pyrazole-4-carboxamide (CAS 61620-76-6)
- (S)-4-(4-Nitrobenzyl)oxazolidine-2,5-dione (CAS 59872-22-9)
- 2-((3-Nitroimidazo[1,2-a]pyridin-2-yl)amino)acetic acid (CAS 62194-95-0)
- (4-Cyclopropoxy-2-isopropoxyphenyl)(methyl)sulfane (CAS 1243443-03-9)
- 6-Bromopyrrolo[1,2-a]pyrazin-1-amine (CAS 2052589-16-7)
- tert-Butyl (5-methoxy-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)carbamate (CAS 1186637-33-1)
- 6-oxa-2,9-diazaspiro[4.5]decan-8-one;hydrochloride (CAS 1778734-60-3)
- 2-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)triazole (CAS 1657004-85-7)
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- 3-Phenyl-4-[4-(2-phenyldiazenyl)anilino]-3-buten-2-one (CAS 339017-29-7)
- 2-Methyl-3-(4-pyridin-2-yl-piperazin-1-yl)-propionic acid dihydrochloride (CAS 1185304-89-5)
- rac-[(1R,3aS,7aS)-hexahydro-1H-furo[3,4-c]pyran-1-yl]methanamine hydrochloride (CAS 1909286-48-1)
- Fibrinopeptide B (human) (CAS 36204-23-6)
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