5,5',6,6'-TETRAHYDROXY-3,3,3',3'-TETRAMETHYL-1,1'-SPIROBISINDANE Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 77-08-7 |
| Product name | 5,5',6,6'-TETRAHYDROXY-3,3,3',3'-TETRAMETHYL-1,1'-SPIROBISINDANE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeReagent Grade |
| Packaging | 25KG/bag500KG/bag1000KG/bag |
| 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 77-08-7
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 77-08-7 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 77-08-7
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical Intermediates | Construction of drug molecule scaffolds | Synthesized via condensation reactions |
| Materials Science | Synthesis of specialty polymers | Used as a monomer in polymerization reactions |
| Analytical Reagents | Chemical analysis | Used as reference standards or reaction reagents |
Manufacturing Quality Control of 77-08-7
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination using reverse-phase HPLC with UV detection at 254 nm, comparing peak area to a certified reference standard. |
| Related Substances | HPLC-DAD | Separation and detection of impurities using HPLC coupled with diode array detection, with identification and quantification against qualified impurity standards. |
| Residual Solvents | GC-FID | Headspace gas chromatography with flame ionization detection to quantify volatile organic solvents based on retention time and peak area calibration. |
| Water Content | Karl Fischer Titration | Electrochemical titration using iodine generated in situ to react stoichiometrically with water, measuring endpoint potentiometrically. |
| Heavy Metals | ICP-MS | Inductively coupled plasma mass spectrometry for simultaneous multi-element trace metal quantification after acid digestion and dilution. |
| Chloride Content | Ion Chromatography | Separation of chloride anions on an anion-exchange column with suppressed conductivity detection, calibrated against NaCl standards. |
| Sulfated Ash | Gravimetric Analysis | Incineration at 700-800 C followed by sulfuric acid treatment and final weighing of residual inorganic ash. |
| Optical Rotation | Polarimetry | Measurement of the angle of rotation of plane-polarized light passing through a solution, indicating enantiomeric purity and identity. |
| Melting Point | Capillary Melting Point Apparatus | Thermal determination of solid-to-liquid phase transition using calibrated capillary tube method per USP <741>. |
| Particle Size Distribution | Laser Diffraction | Analysis of scattered laser light intensity as a function of angle to calculate particle size distribution in a dispersed slurry. |
| pH of Aqueous Suspension | Potentiometric pH Measurement | Determination of hydrogen ion activity in a defined suspension (e.g., 1% w/v in water) using a calibrated glass electrode system. |
| Microbial Limits | Membrane Filtration | Quantitative recovery and enumeration of aerobic microorganisms via filtration, membrane transfer to culture media, and colony counting after incubation. |
Technical Specifications of 77-08-7
| Test Item | Specification |
|---|---|
| Appearance | Brown solid |
| Purity | >=98.5% (HPLC) |
| Melting Point | 248–252°C |
| Total Impurities | <=1.5% (HPLC) |
| Single Impurity | <=0.5% (HPLC) |
| Water Content (KF) | <=0.5% |
| Heavy Metals | <=20 ppm (as Pb) |
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 77-08-7
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 77-08-7
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Industrial 77-08-7 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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