LKE6D3018E 503-17-3 2-Butyne EINECS 207-962-2 UNII-LKE6D3018E Crotonylene [UN1144] [Flammable liquid] UN1144 Crotonylene CAS 503-17-3
| CAS No. | 503-17-3 |
| Molecular Formula | C4H6 |
| Molecular Weight | 54.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of LKE6D3018E 503-17-3 2-Butyne EINECS 207-962-2 UNII-LKE6D3018E Crotonylene [UN1144] [Flammable liquid] UN1144 Crotonylene is closely related to an organic framework in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies LKE6D3018E 503-17-3 2-Butyne EINECS 207-962-2 UNII-LKE6D3018E Crotonylene [UN1144] [Flammable liquid] UN1144 Crotonylene (CAS 503-17-3), a certified reference material (molecular formula C4H6, MW 54.09 g/mol) for analytical method development and quality control.
Based on its molecular formula C4H6, LKE6D3018E 503-17-3 2-Butyne EINECS 207-962-2 UNII-LKE6D3018E Crotonylene [UN1144] [Flammable liquid] UN1144 Crotonylene contains an organic framework; these features give the compound characteristic molecular-ion distribution patterns in mass spectrometry. The molecular weight of 54.09 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry.
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 | C4H6 |
| Molecular Weight | 54.09 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1957 |
Recommended Standards
- Poly(1-butene-1,4-diyl) (CAS 25038-44-2)
- 9003-17-2 Polybutadiene 1,3-Butadiene, homopolymer B 11 B 3000 B 7 S 820 Alfine Atactic butadiene polymer Budium RK 622 Butadiene homopolymer Butadiene oligomer Butadiene polymer 1,3-Butadiene, polymers Butadiene resin Butarez 15 CB 10 Diene 35 NF Dienite X 555 Dienite X 644 Dienite 556 Dienite 643 FCR 126 FCR 1261 FCR 1261pd HSDB 1196 Hystl Hystl B 1000 Hystl B 2000 Hystl B 300 Hystl B 3000 LCB 150 Nisso BN 1000 Nisso PB-B 4000 Nisso PB 100 Nisso PB 3000 Nisso PB 4000 Nisso PB-GQ 3000 Nisso PR 2000 Pbc200 Poly-1,3-butadiene Polyoil 110 Polyoil 130 Quintol B 1000 XPDR-A 288 XRDR-A-288 (CAS 9003-17-2)
- 1-Butyne-3,3,4,4,4-d (CAS 107-00-6)
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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