Wholesale API Intermediate 4-Chloro-isobenzofuran-1,3-dione 3-Chlorophthalic Anhydride

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Chemical Specimen Laboratory Analysis
Main Products
Product Name CAS MF MW EINECS Mol File
5-Nitroisophthalic acid 618-88-2 C8H5NO6 211.13 210-568-3 618-88-2.mol
5-Aminoisophthalic acid 99-31-0 C8H7NO4 181.15 202-748-5 99-31-0.mol
Dimethyl 5-nitroisophthalate 13290-96-5 C10H9NO6 239.18 236-307-3 13290-96-5.mol
3-Nitrophthalic anhydride 641-70-3 C8H3NO5 193.11 211-373-6 641-70-3.mol
3-Nitrophthalic acid 0603-11-2 C8H5NO6 211.13 210-030-8 603-11-2.mol
3-Nitrophthalimide 603-62-3 C8H4N2O4 192.13 210-051-2 603-62-3.mol
4-Nitrophthalic anhydride 5466-84-2 C8H3NO5 193.11 226-776-2 5466-84-2.mol
4-Nitrophthalimide 89-40-7 C8H4N2O4 192.13 201-905-5 89-40-7.mol
4-Nitrophthalonitrile 31643-49-9 C8H3N3O2 173.13 250-748-9 31643-49-9.mol
4-Nitro-N-methylphthalimide 41663-84-7 C9H6N2O4 206.15 255-483-2 41663-84-7.mol
4-AMINO-N-METHYLPHTHALIMIDE 2307-00-8 C9H8N2O2 176.17 - 2307-00-8.mol
L-Theanine 3081-61-6 C7H14N2O3 174.2 221-379-0 3081-61-6.mol
3-CHLOROPHTHALIC ANHYDRIDE 117-21-5 C8H3ClO3 182.56 204-179-8 117-21-5.mol
4-Chlorophthalic anhydride 118-45-6 C8H3ClO3 182.56 204-251-9 118-45-6.mol

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Frequently Asked Questions
What purity grades are available for 5-Nitroisophthalic acid and other chemical intermediates?
We supply high-purity chemical intermediates, typically featuring a purity level of 98% or above. Precise purity parameters, moisture levels, and trace impurity profiles are detailed in each product's Certificate of Analysis (COA).
Can I request a sample of L-Theanine or other intermediates before bulk orders?
Yes, sample orders are available for quality evaluation and pilot testing. Please reach out to our team with your requested quantity and specifications to arrange for shipping.
What documentation do you provide for safety and compliance?
Every shipment is accompanied by standard commercial documents, including the Certificate of Analysis (COA), Material Safety Data Sheet (MSDS), and Packing List to ensure full compliance with international chemical handling standards.
How are hazardous and moisture-sensitive chemicals packaged?
Moisture-sensitive products like 3-Nitrophthalic anhydride are sealed in double-layered, moisture-proof polythene bags, further secured within durable drums. All packaging conforms strictly to international UN standards for hazardous and non-hazardous chemical transport.
What is the typical shipping lead time for bulk chemical orders?
For in-stock materials, orders are typically prepared for dispatch within 7-10 business days. Custom synthesis or larger bulk supply schedules will be coordinated during the inquiry and quotation phase.

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