706-07-0 Benzene, 1-chloro-4-(2-nitroethenyl)- (9CI) Styrene, p-chloro-beta-nitro- 3-05-00-01181 (Beilstein Handbook Reference) BRN 2208373 p-Chloro-beta-nitro-styrene 4-Chloro-beta-nitrostyrene p-Cloro-beta-nitrostirene [Italian] NSC 2547 p-Cloro-beta-nitrostirene CAS 706-07-0
| CAS No. | 706-07-0 |
| Molecular Formula | C8H12ClNO2 |
| Molecular Weight | 189.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
706-07-0 Benzene, 1-chloro-4-(2-nitroethenyl)- (9CI) Styrene, p-chloro-beta-nitro- 3-05-00-01181 (Beilstein Handbook Reference) BRN 2208373 p-Chloro-beta-nitro-styrene 4-Chloro-beta-nitrostyrene p-Cloro-beta-nitrostirene [Italian] NSC 2547 p-Cloro-beta-nitrostirene (CAS 706-07-0), molecular formula C8H12ClNO2 and molecular weight 189.64 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, 706-07-0 Benzene, 1-chloro-4-(2-nitroethenyl)- (9CI) Styrene, p-chloro-beta-nitro- 3-05-00-01181 (Beilstein Handbook Reference) BRN 2208373 p-Chloro-beta-nitro-styrene 4-Chloro-beta-nitrostyrene p-Cloro-beta-nitrostirene [Italian] NSC 2547 p-Cloro-beta-nitrostirene is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 189.64 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.
As a certified reference material (CRM), 706-07-0 Benzene, 1-chloro-4-(2-nitroethenyl)- (9CI) Styrene, p-chloro-beta-nitro- 3-05-00-01181 (Beilstein Handbook Reference) BRN 2208373 p-Chloro-beta-nitro-styrene 4-Chloro-beta-nitrostyrene p-Cloro-beta-nitrostirene [Italian] NSC 2547 p-Cloro-beta-nitrostirene 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 | C8H12ClNO2 |
| Molecular Weight | 189.64 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
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