- ▸ Cellulose esters: Esterifying agent for cellulose
- ▸ Coatings: Intermediate for alkyd resins
- ▸ Dyestuffs: Propionylation of dye intermediates
- ▸ Fragrances: Esterifying agent for perfume oils
A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.
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Transport classification per the UN Model Regulations / 49 CFR 172.101 Hazardous Materials Table. Confirm against the grade-specific SDS (Section 14) before shipping.
Propionic anhydride (CAS 123-62-6) is the symmetrical anhydride of propionic acid. It serves as a propionylating and esterifying agent for cellulose, fats, and perfume oils, and as an intermediate in the manufacture of alkyd resins, dyestuffs, and other propionyl derivatives.
Frequently Asked Questions
How do you make propionic anhydride?
Propionic anhydride (CAS 123-62-6) is the symmetrical anhydride of propionic acid, produced industrially by dehydration of propionic acid (often via ketene chemistry). RawSource supplies the finished product; identity is confirmed on the CoA against CAS 123-62-6.
What is propionic anhydride used for?
It is a propionylating and esterifying agent for cellulose, fats, and perfume oils, and an intermediate in alkyd resins, dyestuffs, and other propionyl derivatives. It introduces a propionyl group where an acid would react too slowly.
What is the difference between propionic anhydride and propionic acid?
Propionic anhydride (C6H10O3) is two propionic-acid units joined with loss of water, making it a more reactive acylating agent than the parent propionic acid. It transfers a propionyl group and releases propionic acid as the byproduct.
What is the HS code for propionic anhydride and how does it ship?
It is classified under HS 2915.90 and transported under UN 2496 (propionic anhydride), a corrosive material. Review the SDS for GHS classification and handling, and confirm packaging requirements for your destination.
What bulk packaging and grades are available for propionic anhydride?
RawSource supplies propionic anhydride in drums, IBC totes, and bulk to manufacturers. Pricing is volume-dependent; submit your target quantity and any purity specification for a bulk quote, with a CoA and SDS provided per lot.