Product Details
| Product Name: 5-Methylisatoic anhydride | CAS No.: 4692-99-3 |
| Min. Order: 1kg | Purity: 98% |
| Supply Ability: Customise | Release date: 2025/10/28 |
Introduction for 5-Methylisatoic anhydride
6-Methylisatoic anhydride, also known as 6-methyl-1h-benzo[d][1,3]oxazine-2,4-dione.
5-Methylisatoic anhydride serves as a valuable intermediate in organic synthesis.
It is utilized in the production of various dyes and pigments due to its reactive functional groups.
Moreover, it can be employed in research laboratories for the development of heterocyclic compounds and other complex molecules.
LBAO Chemicals supplies high-purity CAS 4692-99-3(>98%) in bulk quantities, tailored for industrial-scale synthesis and research needs.
Our customizable packaging solutions and global shipping capabilities ensure safe and compliant delivery to your location.

General Information
| Property | Specification |
|---|---|
| Product Name | 5-Methylisatoic anhydride |
| CAS RN | 4692-99-3 |
| Molecular Formula | C₉H₇NO₃ |
| Molecular Weight | 179.14 g/mol |
| Chemical Name | 6-Methyl-1H-benzo[d][1,3]oxazine-2,4-dione |
| Physical State | Solid |
| Purity / Analysis Method | >98.0% |
| Appearance | White to pale yellow crystalline powder |
| Flash Point | N/A |
| Melting Point | 255–258 °C (dec.) (lit.) |
| Boiling Point | N/A |
| Density | 1.335 ± 0.06 g/cm³ at 25 °C |
| Solubility | Soluble in some organic solvents like ethanol; slightly soluble in water |
| Vapor Pressure | N/A |
| LogP | N/A |
How LBAO Ships and Stores 5-Methylisatoic anhydride
At LBAO Chemicals, we provide reliable global shipping and custom packaging solutions designed to meet the unique demands of the chemical industry.
Whether dealing with hazardous materials or sensitive reagents, our packaging protocols ensure both safety and compliance with international transport standards.
For more details on our shipping and packaging practices, please visit our Shipping & Packaging page.
Packaging: 25 kg per package, available in fiber drums or kraft paper bags based on customer requirements.
Packaging
1. Solids: Standard 25 kg net weight per container, available in fiber drums or multi-layer kraft paper bags, selected according to product properties and customer requirements.
2. Liquids: Packed in chemically compatible glass or high-density polyethylene (HDPE) bottles, in compliance with relevant shipping regulations.
Freight Options
1. Air Freight – For shipments exceeding 50 kg, providing fast and reliable airport-to-airport service within 3–14 days.
2. Sea Freight – For shipments exceeding 100 kg, offering cost-effective seaport-to-seaport delivery within 2–45 days.

Contact Information
For further inquiries, please feel free to contact us:
1.Email: sales@lbaochemicals.com
2. WeChat: mm-18055159278
3. WhatsApp / Telegram / LINE: +1 778 683 1894
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