China Factory Direct
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| CAS number | 196929-78-9 |
| Product name | (R)-(+)-2-Methyl-2-propanesulfinamide |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical 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) |
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 Industry | Chiral auxiliary for asymmetric synthesis of chiral amines | Used as a chiral inducting reagent: reacts with carbonyl compounds (e.g., ketones, aldehydes) to form imines, followed by stereoselective reduction or nucleophilic addition to construct chiral centers |
| Pharmaceutical Industry | Synthesis of bioactive molecules or pharmaceutical intermediates (e.g., anticancer agents, antiviral agents) | Introduces a chiral tert-butanesulfinyl group in multistep syntheses; the protecting group is subsequently removed via acid treatment to yield the target chiral amine |
| Chemical Research | Chiral ligand or catalyst component | Applied in the development of novel asymmetric synthetic methodologies or as a ligand in metal complexes for catalytic reactions |
| Test Item | Common Testing Methods | Method Overview |
|---|---|---|
| Identification | Infrared Spectroscopy (IR) | Compares the infrared absorption spectrum of the sample with reference spectra to confirm the presence of characteristic functional groups (e.g., S=O, N–H). |
| Proton Nuclear Magnetic Resonance (¹H NMR) | Analyzes chemical shifts, coupling constants, and integration areas of hydrogen atoms to verify molecular structure and stereochemical configuration consistency. | |
| Optical Purity / Enantiomeric Excess (ee Value) | Chiral High-Performance Liquid Chromatography (Chiral HPLC) | Uses a chiral stationary phase column to separate enantiomers; the content of the (R)-enantiomer is calculated from peak areas to assess optical purity. |
| Chemical Purity | High-Performance Liquid Chromatography (HPLC) | Employs reversed-phase or normal-phase chromatographic conditions to determine the area percentage of the main component, evaluating total impurities and individual impurity levels. |
| Water Content | Karl Fischer Titration | Quantitatively determines water content via the reaction between iodine and sulfur dioxide in a pyridine/methanol system. |
| Residual Solvents | Gas Chromatography (GC) | Utilizes headspace or direct injection to separate and quantify potentially residual organic solvents (e.g., dichloromethane, toluene). |
| Melting Point | Melting Point Determination | Determines the melting temperature range using capillary method or digital melting point apparatus as one of the physical purity indicators. |
| Specific Rotation | Polarimetry | Measures the optical rotation of a solution under specified wavelength (typically sodium D line, 589 nm) and temperature to characterize optical activity and ensure batch-to-batch consistency. |
| Heavy Metals | Atomic Absorption Spectroscopy (AAS) or Inductively Coupled Plasma Mass Spectrometry (ICP-MS) | After sample digestion, quantifies trace heavy metals such as lead, arsenic, cadmium, and mercury to ensure compliance with pharmacopoeial or regulatory limits. |
| Test Item | Specification |
|---|---|
| Appearance | Pale-yellow solid |
| Purity | >=98.0% (GC-MS); >=99% ee |
| Optical Rotation | +2.0 to +6.0° (c=1, in CHCl3) |
| Melting Point | 78.0 to 82.0°C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Identification (NMR) | Conforms to reference spectrum |
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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.