Diethyl L-Malate(CAS 691-84-9)
| Purity | Grade | Package | Stock | Price | Quantity |
| 98% | RG | 5G | In Stock | 8 USD
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| 98% | RG | 25G | In Stock | 20 USD
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| 98% | RG | 100G | In Stock | 69 USD
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| 98% | RG | 500G | In Stock | 454 USD
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| 98% | RG | 2.5KG | In Stock | 2180 USD
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Quality System
Applications of 691-84-9
| Industry | Application | Process |
|---|---|---|
| Food Additives | Used as a flavoring ingredient to formulate fruit-flavored foods and beverages | Synthesized via esterification, then purified prior to incorporation into food products |
| Fragrances & Personal Care | Used as a fragrance raw material in perfumes, cosmetics, and personal care products | Produced by acid-catalyzed esterification of L-malic acid with ethanol, followed by purification via distillation or extraction |
| Pharmaceutical Intermediates | Employed as a chiral synthetic intermediate in the construction of active pharmaceutical ingredients | Leverages its chiral structure in asymmetric synthesis, commonly applied in the manufacture of antibiotics or cardiovascular drugs |
| Chemical Research | Used as a chiral reagent or solvent in organic synthesis | Applied in specialized laboratory reaction systems, such as asymmetric catalysis or chiral resolution via crystallization-induced asymmetric transformation |
Physical and chemical properties of 691-84-9
Acidity coefficient |
12.35±0.20(Predicted) |
|---|---|
Boiling Point |
281.6±20.0 °C at 760 mmHg |
Density |
1.1±0.1 g/cm3 |
Exact Mass |
190.084122 |
Flash Point |
85.0±0.0 °C |
Index of Refraction |
1.446 |
LogP |
0.23 |
Melting Point |
-168°C |
Molecular Formula |
C8H14O5 |
Molecular Weight |
190.194 |
PSA |
72.83000 |
Solubility |
Chloroform (Slightly), Methanol (Slightly) |
Specific rotation |
-10.18° |
Storage condition |
Sealed in dry,Room Temperature |
Vapour Pressure |
0.0±1.3 mmHg at 25°C |
Cas:108-56-5
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Q&A for CAS 691-84-9
1. How can I verify product quality?
Every batch of our Chemical Reagents is tested to meet ISO 9001 standards. We provide COA & NMR & SDS Provided with each shipment. Batch COA available for verification, and third-party retesting is supported. A full refund is offered if our data is incorrect.
2. What is the delivery time?
Orders from Ready stock / In stock items typically Ships Tomorrow via Fast Shipping via FedEx/DHL/UPS. International deliveries usually arrive within 7 business days, subject to customs clearance.
3. What if the received product doesn’t meet quality standards?
If your Lab Grade Chemical Reagents do not match the Batch COA available, we will issue a replacement or a full refund upon verification.
4. Are hazardous labels included? How is safe shipping ensured?
Hazardous products are labeled and packaged following international regulations. We provide SDS Provided with all hazardous shipments to ensure safe and compliant transport.
5. Do you offer technical support?
Yes. Our Lab Supplier team is available to assist with questions about product usage, storage, Lab Grade requirements, applications, and more.
6. Are volume discounts available?
Yes. For bulk orders of Chemical Reagents, we offer competitive pricing. Submit a quotation request and we’ll provide a tailored offer.
7. Do you provide samples?
Yes, samples are available for selected Lab Grade products. Please submit a request to confirm availability and specifications.
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Yes. Items labeled In stock / Ready stock on our website are available for immediate shipment, usually within 1–2 business days. Large packs or custom specifications require lead time confirmation.
9. Can you customize purity or packaging?
Yes. We support customization of Lab Grade purity, packaging size, and special testing requirements. Share your needs and we’ll provide a tailored solution.
10. Is the COA consistent with the shipped batch?
Yes. Batch COA available matches the actual shipment. COAs shown online are for reference or from previous batches.
11. Do you support long-term supply agreements?
Yes. We offer Lab Supplier services for stable batch consistency, pricing agreements, and safety stock for long-term customers to ensure uninterrupted supply.
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We accept Pay Local Currency via bank transfer (T/T), PayPal, and other methods. Credit terms are available for qualified long-term partners.
Download SDS of 691-84-9
Pictograms |
 |
|---|---|
Signal Word |
Warning |
Hazard Statements |
H315 Causes skin irritation H319 Causes serious eye irritation H335 May cause respiratory irritation |
Safety Data Sheet |
Download COA of 691-84-9
Operate under the ISO 9001 system
