Products Description
NSA, CAS: 28928-97-4 belongs to the class of ene-butyric anhydride products. At room temperature, it is a light yellow transparent oily liquid that readily hydrolyzes upon contact with water; the molecule contains an active acid anhydride group and a C9 hydrophobic long chain.
NSA features low viscosity, long pot life, outstanding toughness, excellent water resistance and stable electrical insulation for epoxy casting and encapsulation.
Products Specification
| Product name | NSA/NONENYLSUCCINIC ANHYDRIDE |
| CAS NO | 28928-97-4 |
| ITEM NO | M294 |
| Appearance | Light yellow transparent liquid |
| Purity | ≥90% |
| Specific Gravity | 1.021 |
| Viscosity (25°C) | 83 cp |
| Acid Value (mg KOH/g) | 475-495 |
| Flash point | >230 °F |
| Package | 100g/1kg/10kg etc. |
| Delivery | 2-3days |
| Storage | room temperature |
| MSDS/COA/TDS | Connect us |
Products Application

Electron Microscopy and Research Fields: Used as a curing agent for low-viscosity epoxy resins, especially in the Spurr resin formulation, for the preparation of biological samples and ultra-microstructure analysis.
Biochemistry and Pharmaceutical Research: As a biochemical reagent, used for protein labeling, modification, as well as organic synthesis and drug discovery.
Polymer Materials and Chemical Engineering: As a reactive intermediate, used for the production of surfactants, adhesives, and coatings, and also as a curing agent for epoxy resins.
Industrial Additives: Used for preparing rust inhibitors, cleaning agent intermediates, and for the encapsulation and packaging of electronic components.
FAQ
Q: What is the function of NSA in Spurr resin?
A: NSA acts as the curing agent of Spurr resin. It can cure the low-viscosity embedding resin and make it harden, which is used for biological sample embedding for TEM ultra-thin section preparation.
Q: Why choose NSA for biological TEM sample embedding?
A: NSA-based Spurr resin has low viscosity, good penetration into fine biological tissue, low shrinkage after curing and stable ultra-structure preservation.
Q: Will moisture affect the performance of NSA when preparing Spurr resin?
A: Yes. NSA is sensitive to water and easy to hydrolyze. Keep the raw material sealed and dry during formula preparation.
Q: Could NSA cured epoxy resin withstand high vacuum environment inside TEM?
A: Yes. Fully cured resin has low outgassing property and can remain stable under the high vacuum condition of transmission electron microscope.
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