乙二醛

Description

Glyoxal · CAS 107-22-2 · C2H2O2. UNII 50NP6JJ975. Boiling Point: 124 °F at 776 mmHg (NTP, 1992); Boiling Point: 51 °C at 776 mm Hg; Boiling Point: 104 °C.

Identification

CAS Registry Number	107-22-2
PubChem CID	7860
Molecular formula	C2H2O2
IUPAC name	oxaldehyde
UNII (FDA)	50NP6JJ975

Computed Descriptors

Molecular Weight	58.04
XLogP3	-0.4
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	2
Rotatable Bond Count	1
Exact Mass	58.005479302
Monoisotopic Mass	58.005479302
Topological Polar Surface Area	34.1
Heavy Atom Count	4
Formal Charge	0

Physical & Chemical Properties

Boiling Point	124 °F at 776 mmHg (NTP, 1992)
Boiling Point	51 °C at 776 mm Hg
Boiling Point	104 °C
Boiling Point	124 °F
Melting Point	59 °F (NTP, 1992)
Melting Point	15 °C
Melting Point	-14 °C
Melting Point	59 °F
Flash Point	428 °F (NTP, 1992)
Flash Point	428 °F

Physical description & handling notes

• Glyoxal appears as yellow crystals melting at15 °C. Hence often encountered as a light yellow liquid with a weak sour odor. Vapor has a green color and burns with a violet flame.
• CBI; Dry Powder; Liquid
• Commercially available as a 40% aqueous solution, clear to slightly yellow with a faint, sour odor; [AIHA] Yellow solid that turns white on cooling; Vapors are green; mp = 15 deg C; [Merck Index] Liquid; Yellow solid below 15 deg C; [Reference #1]
• Liquid
• COLOURLESS-TO-PALE-YELLOW LIQUID.
• Yellow prisms which turn white on cooling; soluble in anhydrous solvents. Often encountered as a light yellow liquid with a weak sour odor. Vapor has a green color and burns with a violet flame.

Regulatory Status

Regulatory & Food Contact	FDA Cumulative Estimated Daily Intake (CEDI): FCS FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS CIR / INCI: Cosmetic ingredients (Glyoxal) -> CIR (Cosmetic Ingredient Review) CIR / INCI: Antimicrobial
GHS notification summary	0.1% (1 / 1432)

GHS Hazard Classification

GHS notification summary	0.1% (1 / 1432)
Reported hazard statements	H315, H317, H319, H332, H341, H302, H334 (30.8%), H335 (22%)

Documented Uses

• Used in paper and textile production, leather tanning, textile dyeing, embalming, curing and cross-linking polymers; Also used as biocide and disinfectant and to make proteins and other materials insoluble; [HSDB] Used in organic synthesis and glues; [Merck Index] Used predominantly as a chemical intermediate; Also used as reducing agent in the photographic industry and to make silvered mirrors; [Reference #1]
• Pulp and Paper Processing [Category: Industry]
• Textiles (Fiber & Fabric Manufacturing) [Category: Industry]
• Working with Glues and Adhesives [Category: Other]
• Using Disinfectants or Biocides [Category: Clean]
• Plastic Composites Manufacturing [Category: Industry]

Synonyms

GLYOXAL; 107-22-2; Ethanedial; oxaldehyde; Oxalaldehyde; 1,2-Ethanedione; Biformyl; Diformyl; Biformal; Oxal; Glyoxylaldehyde; Diformal; Ethanedione; Aerotex glyoxal 40; Glyoxal aldehyde; DTXSID5025364

Frequently Asked Questions

What are the CAS number and molecular formula of Glyoxal?

CAS 107-22-2; molecular formula C2H2O2; molecular weight — g/mol.

What other names is Glyoxal known by?

GLYOXAL, 107-22-2, Ethanedial, oxaldehyde, Oxalaldehyde, 1,2-Ethanedione.

What is the regulatory status of Glyoxal?

Documented regulatory listings: FDA Cumulative Estimated Daily Intake (CEDI): FCS; FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS; CIR / INCI: Cosmetic ingredients (Glyoxal) -> CIR (Cosmetic Ingredient Review).

Is Glyoxal classified as hazardous?

0.1% of GHS notifications report no hazard classification (1 of 1432).

What are the key physical properties of Glyoxal?

Boiling Point: 124 °F at 776 mmHg (NTP, 1992); Boiling Point: 51 °C at 776 mm Hg; Boiling Point: 104 °C; Boiling Point: 124 °F.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.