(e)-2-(2-Benzylidenehydrazinyl)-5-sulfobenzoic acid CAS 68645-45-4
| CAS No. | 68645-45-4 |
| Molecular Formula | C14H12N2O5S |
| Molecular Weight | 320.32 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.
CATO supplies (e)-2-(2-Benzylidenehydrazinyl)-5-sulfobenzoic acid (CAS 68645-45-4), a certified reference material (molecular formula C14H12N2O5S, MW 320.32 g/mol) for analytical method development and quality control.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, (e)-2-(2-Benzylidenehydrazinyl)-5-sulfobenzoic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 320.32 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
As a certified reference material (CRM), (e)-2-(2-Benzylidenehydrazinyl)-5-sulfobenzoic acid 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 | C14H12N2O5S |
| Molecular Weight | 320.32 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related e Standards
- 5-(2-Benzylidenehydrazinyl)-4-chloro-2-phenylpyridazin-3(2H)-one (CAS 59026-57-2)
- (E)-2-(2-benzylidenehydrazinyl)-3-chloro-5-(trifluoromethyl)pyridine (CAS 339029-71-9)
- (E)-4-(2-benzylidenehydrazinyl)-6-isopropylthieno[2,3-d]pyrimidine (CAS 439689-85-7)
- 4-(2-Benzylidenehydrazinyl)-2-(isopropylthio)-6-methylpyrimidine (CAS 154496-67-0)
- 6-(2-Benzylidenehydrazinyl)-1,3-dimethylpyrimidine-2,4(1H,3H)-dione (CAS 25774-97-4)
- 5-(2-Benzylidenehydrazinyl)-2-isopropyloxazole-4-carbonitrile (CAS 620584-63-6)
- (Z)-5-(2-Benzylidenehydrazinyl)-4-chloropyridazin-3(2H)-one (CAS 91063-66-0)
- (e)-1-(2-Benzylidenehydrazinyl)phthalazine (CAS 67073-46-5)
Recommended Standards
- Diethyl ((phenylamino)(pyridin-3-yl)methyl)phosphonate (CAS 183016-46-8)
- 1-Ethyl-6-fluoro-7-morpholino-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 70458-98-9)
- 3-(1-(Benzo[d][1,3]dioxole-5-carbonyl)azetidin-3-yl)thiazolidine-2,4-dione (CAS 1798677-45-8)
- 2-((1-Cyanocyclopentyl)amino)-2-oxoethyl 2-fluoro-4-methoxybenzoate (CAS 871544-72-8)
- 3-Chloro-2,4-dimethyl-6-hydroxybenzaldehyde (CAS 81322-67-0)
- N-(2-methoxypyridin-3-yl)acetamide (CAS 51468-07-6)
- 2-(2-Bromo-4-fluorophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1595078-01-5)
- 4-Boc-2-(hydroxymethyl)homomorpholine (CAS 1174020-52-0)
- Quinamine (CAS 464-85-7)
- 3'-Bromo-3,4,5-trifluoro-1,1'-biphenyl (CAS 1443310-51-7)
- 6-(Pyridin-3-yloxy)pyridin-3-amine hydrochloride (CAS 1423024-57-0)
- (3S,3aS,9bS)-9b-((4-Fluorophenyl)sulfonyl)-7-(perfluoropropan-2-yl)-2,3,3a,4,5,9b-hexahydro-1H-cyclopenta[a]naphthalene-3-carboxylic acid (CAS 2226317-41-3)
- 3-Bromo-5-(tosylmethyl)pyridine (CAS 866021-35-4)
- Peptide T (CAS 106362-32-7)
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