Gallic Acid(CAS 149-91-7)
| Purity | Grade | Package | Stock | Price | Quantity |
| 98% | RG | 25G | In Stock | 3 USD
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| 98% | RG | 100G | In Stock | 5 USD
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| 98% | RG | 500G | In Stock | 16 USD
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| 98% | RG | 2.5KG | In Stock | 49 USD
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| 98% | RG | 25KG | In Stock | 480 USD
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Applications of 149-91-7
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical Industry | Synthesis of pyrogallol | Decarboxylation of gallic acid under vacuum heating conditions |
| Pharmaceutical Industry | Synthesis of trimethoprim (TMP) | Used as an antibacterial synergist intermediate for sulfonamide drugs |
| Pharmaceutical Industry | Production of antidiarrheal agents | Leveraging its astringent properties |
| Dye Industry | Synthesis of mordant dyes and acid dyes | Condensation reaction with amine compounds |
| Chemical Industry | Production of gallic acid esters (e.g., propyl, octyl, and dodecyl gallates) | Esterification with corresponding alcohols |
| Food Industry | Food antioxidant | Added to oils or food products to prevent oxidative rancidity |
| Cosmetics Industry | Antioxidant and hair-conditioning agent in cosmetics | Incorporated into skincare or haircare formulations |
| Photographic Materials | Manufacture of spectral photographic plates | Used for chemical sensitization or as a component of developing agents |
| Nanomaterials | Synthesis of noble metal nanoparticles (e.g., gold and silver nanoparticles) | Serves as both reducing and stabilizing agent in green synthesis processes |
| Analytical Chemistry | Metal ion detection and colorimetric analysis | Utilizes complexation-induced color reactions with metal ions |
| Water Treatment | Corrosion inhibitor for recirculating water systems | Applied for passivation protection of metal surfaces |
| Explosives Industry | Gas absorbent | Used to remove oxygen from oxygen-containing gases (oxygen scavenger) |
Physical and chemical properties of 149-91-7
Acidity coefficient |
4.41(at 25℃) |
|---|---|
Boiling Point |
501.00 °C. @ 760.00 mm Hg |
BRN |
2050274 |
Decomposition |
When heated to decomposition it emits acrid smoke and irritating fumes. |
Density |
Relative density (water = 1): 1.7 |
Exact Mass |
170.021530 |
Flash Point |
271.0±26.6 °C |
Index of Refraction |
1.730 |
LogP |
0.7 |
Melting Point |
258 - 265 °C |
Merck |
14,4345 |
Molecular Formula |
C7H6O5 |
Molecular Weight |
170.120 |
pH |
3.75(1 mM solution);3.22(10 mM solution);2.71(100 mM solution) |
PSA |
97.99000 |
Solubility |
Solubility in water, g/100ml: 1.1 (moderate) |
Stability |
Stability Stable, but may discolour upon exposure to light. Hygroscopic. Incompatible with strong oxidizing agents, strong bases, acid chlorides, acid anhydrides. |
Storage condition |
2-8°C |
Vapour Pressure |
0.00000012 [mmHg] |
Water Solubility |
12 g/L cold water |
Spectrums of 149-91-7
1.The NMR spectrum displayed on the page is a pre-sale reference spectrum and may differ from that of the actual received batch.
2.The accompanying documentation will include the NMR spectrum and purity analysis data for the shipped batch.
Retrosynthesis analysis of 149-91-7
Cas:61203-46-1
Cas:536-08-3
Cas:7664-93-9
Cas:10034-85-2
Cas:3934-84-7
Q&A for CAS 149-91-7
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.
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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.
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Yes. Our Lab Supplier team is available to assist with questions about product usage, storage, Lab Grade requirements, applications, and more.
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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.
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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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Download SDS of 149-91-7
Pictograms |
 |
|---|---|
Signal Word |
Danger |
Hazard Statements |
H315 Causes skin irritation H318 Causes serious eye damage H319 Causes serious eye irritation H335 May cause respiratory irritation |
Safety Data Sheet |
Download COA of 149-91-7
Operate under the ISO 9001 system
