Glyoxylic acid monohydrate
Description
Glyoxylic acid monohydrate (CAS 563-96-2), also known as formylformic acid, is a bifunctional organic acid used across pharmaceutical synthesis, cosmetic formulation, and specialty chemical manufacturing.
Its dual aldehyde-acid reactivity makes it a valued building block and intermediate where controlled reactivity under mild conditions is required for complex chemical reactions.
In pharmaceutical manufacturing, it serves as a key intermediate in the synthesis of active ingredients, including amino acids such as D,L-mandelic acid and vanillin precursors.
Hair care formulators use it as the active agent in keratin-based straightening treatments, where it crosslinks hair proteins under heat to reshape fiber structure safely.
This material serves as a direct replacement for formaldehyde in professional salon products. In textile and paper processing, it functions as a fixative and crosslinking agent.
It improves dimensional stability and wet strength for cellulose-based substrates. Water treatment applications rely on its chelating capacity to sequester metal ions effectively.
Glyoxylic acid monohydrate is commercially available as an aqueous solution, most commonly at 50% concentration. Technical and industrial grades are standard across the market.
Pharmaceutical-grade material is available for regulated synthesis applications. Packaging ranges from drums to IBC containers depending on specific volume requirements.
Physical Properties
| Melting Point | 98 °C |
| Boiling Point | 129-130 °C |
| Density | 1.70 g/cm³ |
| Flash Point | >230 °F |
| Appearance | white to light yellow crystalline powder or chunks |
| Color | White to light yellow |
| Form | Liquid |
| Water Solubility | Freely soluble |
| Refractive Index | n 20/D 1.414 |
Safety & Handling (Learn More)
Trade & Regulatory
| HS Code | 29183000 |
| UN Number | 3265 |
| ADR Class | 8 |
| Packing Group | II |
| Storage Class | 8A - Combustible corrosive hazardous materials |
| WGK (Germany) | 1 |
Documentation
Other Names
Oxoethanoic acid|Formylformic acid|Dihydroxyacetic acid|Acetic acid, 2,2-dihydroxy-|Acetic acid, dihydroxy-|2,2-Dihydroxyacetic acid|Acetic acid, oxo-, monohydrate|Glyoxylic acid hydrate
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