2-Bromo-4-butanolide Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 5061-21-2 |
| Product name | 2-Bromo-4-butanolide |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial Grade |
| Packaging | 25L/drum200L/drum1000L/IBC |
| Sample | Test Samples Available (Click to Request Samples) |
| COA | View COA |
| Price | Get Quote |
| Supply Type | Bulk / Contract manufacturing / OEM |
| Shipping | FCL / LCL available |
| Payment Terms | Support FOB \ CIF \ EXW quotations, and accept Letter of Credit (L/C). |
| Manufacturer | Greenrock Chemical(China Factory) |
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Documents We Provide for 2-Bromo-4-butanolide
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 2-Bromo-4-butanolide Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 2-Bromo-4-butanolide
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical Chemicals | Pharmaceutical Intermediates | Used as an alkylating agent in the synthesis of GABA derivatives, including piracetam, oxiracetam, and aniracetam—cognitive enhancers that improve cerebral metabolism. |
| Pharmaceutical Chemicals | Vitamin Synthesis | Applied in the synthesis of vitamin B6. |
| Pharmaceutical Chemicals | Active Pharmaceutical Ingredient (API) Synthesis | Used to synthesize intermediates for quinolone antibacterial agents such as ciprofloxacin. |
| Agrochemicals | Agrochemical Intermediates | Applied in the synthesis of insecticides, plant growth regulators, and other agrochemicals. |
| Fine Chemicals | Organic Synthesis Reagent | Employed in nucleophilic substitution reactions leveraging its reactive bromine atom to introduce the γ-butyrolactone moiety and construct complex molecular frameworks containing lactone rings. |
Manufacturing Quality Control of 2-Bromo-4-butanolide
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) with FID detection | Quantitative determination based on peak area comparison against a certified reference standard under optimized chromatographic conditions. |
| Water Content | Karl Fischer Titration | Electrochemical titration measuring water via iodine-sulfur dioxide reaction in a methanol-based solvent system. |
| Acidity (as HBr) | Acid-Base Titration with NaOH | Neutralization of acidic impurities using standardized sodium hydroxide solution and potentiometric or indicator endpoint detection. |
| Residue on Ignition | Gravimetric Analysis | Weighing of non-volatile residue remaining after controlled high-temperature ashing of a sample. |
| Color | Visual Comparison Against APHA Scale | Subjective assessment of liquid color intensity by matching against standardized platinum-cobalt color solutions. |
| Density at 20 C | Oscillating U-tube Densitometry | Measurement of sample density based on resonant frequency shift of a vibrating U-shaped tube filled with the sample. |
| Refractive Index at 20 C | Refractometry | Determination of refractive index using Snell's law by measuring angle of light refraction through the sample. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Quantification of total heavy metals after acid digestion, using hollow cathode lamp absorption at element-specific wavelengths. |
| Chloride Impurity | Ion Chromatography (IC) | Separation and quantification of chloride anions using anion-exchange column and suppressed conductivity detection. |
| Residual Solvents (e.g., dichloromethane) | Headspace Gas Chromatography (HS-GC) | Extraction and analysis of volatile solvents from sample headspace using GC-FID or GC-MS detection. |
| Optical Rotation | [alpha]D Measurement | Determination of specific rotation using polarized light passing through a temperature-controlled sample cell. |
| Appearance | Visual Inspection | Assessment of clarity and presence of suspended particles or phase separation in a transparent glass container under controlled lighting. |
Technical Specifications of 2-Bromo-4-butanolide
| Test Item | Specification |
|---|---|
| Appearance | Light yellow to colorless liquid |
| Purity | >=98.0% (GC) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Refractive Index (n20/D) | 1.475–1.485 |
| Relative Density (20°C/25°C) | 1.46–1.48 g/cm³ |
| Odor | Characteristic pungent odor |
Specifications vary by industry. Reach out to our technical experts for a COA tailored specifically to your application. Email:selse@GRchemical.com
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Download COA of 2-Bromo-4-butanolide
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 2-Bromo-4-butanolide
Packaging of 2-Bromo-4-butanolide
Industrial 2-Bromo-4-butanolide Procurement FAQ
1. How do you ensure product quality consistency?
We rely on a mature China-based manufacturing system and implement strict batch control and quality inspection for every shipment. Our production process complies with ISO 9001 standards, and a COA is provided for each batch to ensure consistent and reliable quality.
2. Do you offer competitive pricing for bulk orders?
Yes, as a China-based manufacturer and bulk supplier, we provide tiered pricing based on order volume. We support FOB and CIF quotations, as well as L/C payment terms for large transactions to meet international trade requirements.
3. Can you support large-volume or long-term supply?
We have stable production capacity and a well-established supply chain, enabling continuous bulk supply. We support ton-level and container-level orders, as well as long-term cooperation projects.
4. What is your typical lead time?
For in-stock products, shipment can be arranged within 1–3 days. For bulk packaging or customized orders, lead time depends on the specific quantity and production schedule.
5. What documents do you provide?
We can provide complete documentation upon request, including COA, SDS, TDS, and other compliance certificates, meeting industrial procurement and export requirements.
6. Can you customize product specifications or packaging?
Yes, we support customization of parameters such as purity, impurities, residual solvents, and heavy metals. We also offer various bulk packaging options, including 25kg bags, drums, and IBC tanks, suitable for industrial applications and transportation.
7. What shipping options do you support?
We support both FCL (Full Container Load) and LCL (Less than Container Load) shipments, and can flexibly arrange logistics solutions based on order size to meet bulk chemical export needs.
8. Do you provide technical or application support?
Yes, we provide basic application guidance and technical support based on industry experience to help customers optimize product usage.
9. How do you handle compliance and export regulations?
We are familiar with international trade and export regulations, ensuring all products comply with relevant requirements. We also provide complete documentation to support smooth customs clearance and global delivery.
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