51503-28-7 Benzenediazonium, 4-chloro-2-methyl-, 1,5-naphthalenedisulfonate (1:1) 4-Chloro-2-methylbenzenediazonium 1,5-naphthalenedisulphonate EINECS 257-247-4 CAS 51503-28-7
| CAS No. | 51503-28-7 |
| Molecular Formula | C10H7O6S2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 440.87 g/mol gives 51503-28-7 Benzenediazonium, 4-chloro-2-methyl-, 1,5-naphthalenedisulfonate (1:1) 4-Chloro-2-methylbenzenediazonium 1,5-naphthalenedisulphonate EINECS 257-247-4 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
51503-28-7 Benzenediazonium, 4-chloro-2-methyl-, 1,5-naphthalenedisulfonate (1:1) 4-Chloro-2-methylbenzenediazonium 1,5-naphthalenedisulphonate EINECS 257-247-4 (CAS 51503-28-7), molecular formula C10H7O6S2C7H6ClN2 and molecular weight 440.87 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution, 51503-28-7 Benzenediazonium, 4-chloro-2-methyl-, 1,5-naphthalenedisulfonate (1:1) 4-Chloro-2-methylbenzenediazonium 1,5-naphthalenedisulphonate EINECS 257-247-4 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 440.87 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C10H7O6S2 C7H6ClN2 |
| Molecular Weight | 440.87 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Benzenediazonium Standards
- Benzenediazonium, tetrafluoroboranuide (CAS 369-57-3)
- 5486-84-0 Benzenediazonium, 4-(benzoylamino)-2,5-diethoxy-, (T-4)-tetrachlorozincate(2-) (2:1) Benzenediazonium, 4-(benzoylamino)-2,5-diethoxy-, (beta-4)-tetrachlorozincate(2-) (2:1) 4-(Benzoylamino)-2,5-diethoxybenzenediazonium tetrachlorozincate (2:1) 4-(Benzoylamino)-2,5-diethoxybenzenediazonium chloride zinc chloride (2:1) EINECS 226-817-4 NSC 59801 (CAS 5486-84-0)
- 67801-08-5 Benzenediazonium, 2-methoxy-4-(4-morpholinyl)-, (T-4)-tetrachlorozincate(2-) (2:1) 2-Methoxy-4-(morpholin-4-yl)benzenediazonium tetrachlorozincate (2:1) EINECS 267-127-3 2-Methoxy-4-morpholinobenzenediazonium chloride, zinc chloride double salt (CAS 67801-08-5)
Recommended Standards
- (2E)-1-(4-Aminophenyl)-3-(2,4-dichlorophenyl)prop-2-en-1-one (CAS 1188369-64-3)
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- Ethyl 4-formyl-1-(tetrahydro-2H-pyran-4-yl)-1H-pyrazole-3-carboxylate (CAS 2138085-66-0)
- tert-butyl 3-{bis[(tert-butoxy)carbonyl]amino}-5-(bromomethyl)-1H-indazole-1-carboxylate (CAS 1638760-63-0)
- Methyl 4-(2-fluorophenyl)-3-oxo-2,3,4,5-tetrahydrobenzo[f][1,4]oxazepine-7-carboxylate (CAS 1710292-82-2)
- 2,2'-(1,4-Phenylene)diethanamine (CAS 7423-50-9)
- 3,5-Bis(trifluoromethyl)-2-methoxybenzaldehyde (CAS 197015-73-9)
- 4-Hydroxyimino-1-methanesulfonyl-pyrrolidine-3-carboxylic acid ethyl ester (CAS 1421312-65-3)
- 1-(1-(2-Nitrophenyl)ethyl)urea (CAS 482576-65-8)
- Vialox Peptide(Pentapeptide-3) diacetate (CAS 725232-44-0)
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