China Factory Direct
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| CAS number | 24856-58-4 |
| Product name | 4-BROMOBENZALDEHYDE DIMETHYL ACETAL |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeIndustrial GradeSpecialty 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) |
Based on current marketvolatility and material availability.
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical Intermediates | Key intermediate in the synthesis of antitumor agents, antimicrobial agents, and central nervous system drugs | Used in cross-coupling reactions such as Suzuki and Heck couplings to construct aryl-substituted frameworks |
| Agrochemical Intermediates | Preparation of insecticides and fungicides containing the bromobenzaldehyde moiety | Employed as a bromoaryl aldehyde precursor; active functional groups are introduced via hydrolysis, oxidation, or substitution reactions |
| Organic Synthesis | Multifunctional synthon for constructing complex aromatic compounds | Acid-catalyzed hydrolysis removes acetal protecting groups to liberate 4-bromobenzaldehyde; alternatively, directly participates in electrophilic aromatic substitution and metal-catalyzed coupling reactions |
| 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 using a non-polar capillary column. |
| Related Substances | High Performance Liquid Chromatography (HPLC) with UV detection | Separation and quantification of impurities using reversed-phase C18 column and gradient elution with UV detection at 254 nm. |
| Residual Solvents | Headspace Gas Chromatography (HS-GC) with FID | Volatile organic solvents are equilibrated in headspace vials, then injected and separated on a polar column for quantitation. |
| Water Content | Karl Fischer Titration (Coulometric mode) | Electrochemical titration where iodine generated in situ reacts stoichiometrically with water; endpoint detected amperometrically. |
| Acid Value | Acid-Base Titration with NaOH standard solution | Neutralization of acidic impurities using standardized sodium hydroxide solution and phenolphthalein indicator. |
| Heavy Metals (as Pb) | Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) | Sample digested in acid matrix, then elemental emission intensities measured at characteristic wavelengths for quantitative analysis. |
| Chloride Impurity | Ion Chromatography (IC) with conductivity detection | Separation of anions on an ion-exchange column followed by suppressed conductivity detection for chloride quantification. |
| Residue on Ignition | Gravimetric Analysis (Sulfated Ash) | Sample ignited at 700-750 C after sulfuric acid treatment; residual inorganic ash is weighed to determine non-volatile residue. |
| Melting Point | Capillary Melting Point Apparatus | Thermal transition observed visually as solid-to-liquid phase change under controlled heating rate per USP <741>. |
| Specific Optical Rotation | Polarimetry | Measurement of rotation angle of plane-polarized light passing through a solution, indicating chiral purity or absence of optically active contaminants. |
| Appearance (Color & Clarity) | Visual Inspection against Standard Solutions | Comparison of sample solution in specified solvent to platinum-cobalt color standards and visual assessment for particulates or haze. |
| Bulk Density | Tap Density Measurement (ASTM D1895) | Mass per unit volume determined after mechanically tapping a graduated cylinder containing a known mass of free-flowing powder. |
| Test Item | Specification |
|---|---|
| Appearance | Pale-yellow liquid |
| Purity | >=98.0% (GC-MS) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Identification (NMR) | Conforms to reference standard |
| Refractive Index (n20/D) | 1.565–1.575 |
| Relative Density (20°C/25°C) | 1.32–1.34 g/cm³ |
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| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
| Pictograms | ![]() |
| Signal Word | Warning |
| Safety Data Sheet | |
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.