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Home> Encyclopedia > Hot Product Listed G   > Glyoxylic acid
298-12-4 structure

Glyoxylic acid

Iupac Name:oxaldehydic acid
CAS No.:298-12-4
EINECS(EC#): 206-058-5
Molecular Weight:74.04
Molecular Formula:C2H2O3 (isomer)
Names and Identifiers
Synonyms

alpha-ketoaceticacid Formic acid, formyl- Formylformic formyl-formicaci glyoxylicacid(50%orless) glyoxylicacid(oxo-aceticacid) Kyselina glyoxylova kyselinaglyoxylova

Inchi
InChI=1S/C2H2O3/c3-1-2(4)5/h1H,(H,4,5)
InChkey
HHLFWLYXYJOTON-UHFFFAOYSA-N
Canonical Smiles
C(=O)C(=O)O
Properties
Appearance
Yellowish Transparent Liquid
Density
1.33 g/mL at 20 °C
Melting Point
-93°C
Boiling Point
111°C
Vapour
0.0331mmHg at 25°C
Refractive Index
n20/D 1.414
Flash Point
111°C
Solubility
miscible
Color/Form
Monoclinic crystals from water
Rhombic prisms obtained from water with 1/2 mol of water of crystallization.
Other physical and chemical properties
Supplied as a 50% aqueous solution. Colorless to straw yellow. (USCG, 1999)
Stability
FORMS A SYRUP ON SHORT EXPOSURE TO AIR /GLYOXYLIC ACID HEMIHYDRATE/
HS Code
2918300090
Storage temp
2-8°C
Spectral properties
MAX ABSORPTION (WATER, PH 7.1): 565 NM (LOG E= 0.1); 576 NM (LOG E= 0.9); 580 NM (LOG E= 1.0); 584 NM (LOG E= 0.9)
MS: NIST 72837 (NIST/EPA/MCDC Mass Spectral Database 1990 version)
Safety and Handling
Hazard Codes
C,Xi
Risk Statements
34-43-41
Safety Statements
26-36/37/39-45-37/39-24
HazardClass
8
Safety

Hazard Codes:?CorrosiveCIrritantXi
Risk Statements: 34-43-41?
R34: Causes burns
R43: May cause sensitization by skin contact
R41: Risk of serious damage to the eyes
Safety Statements: 26-36/37/39-45-37/39-24?
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
S36/37/39: Wear suitable protective clothing, gloves and eye/face protection
S45: In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
S37/39: Wear suitable gloves and eye/face protection
S24: Avoid contact with skin
RIDADR: UN 3265 8/PG 2
WGK Germany: 1
RTECS: MD4550000
HazardClass: 8
PackingGroup: III
Poison by intramuscular route. Mutation data reported. A skin, eye, and mucous membrane irritant. When heated to decomposition it emits acrid smoke and fumes.

Toxicity
1. ???

mmo-sat 200?μg/plate ABCHA6 47,2461,83

2. ???

ims-rat LDLo:25?mg/kg

??? BSIBAC ?? Bolletino della Societe Italiana di Biologia Sperimentale. 36 (1960),1937.
PackingGroup
III
Skin, Eye, and Respiratory Irritations
A skin, eye, and mucous membrane irritant.
Transport
UN 3265 8/PG 2
Formulations/Preparations
SUPPLIED AS A 50% SOLN ... .
Reactivities and Incompatibilities
Deliquesces quickly and forms a syrup on short exposure to air.
Other Preventative Measures
SRP: The scientific literature supports the wearing of contact lenses in industrial environments, as part of a program to protect the eye against chemical compounds and minerals causing eye irritation. However, there may be individual substances whose irritating or corrosive properties are such that the wearing of contact lenses would be harmful to the eye. In those specific cases contact lenses should not be worn.
Protective Equipment and Clothing
A skin, eye, and mucous membrane irritant.
Octanol/Water Partition Coefficient
log Kow= -0.07
Report

Reported in EPA TSCA Inventory

Disposal Methods
SRP: At the time of review, criteria for land treatment or burial (sanitary landfill) disposal practices are subject to significant revision. Prior to implementing land disposal of waste residue (including waste sludge), consult with environmental regulatory agencies for guidance on acceptable disposal practices.
MSDS

2.Hazard identification

2.1 Classification of the substance or mixture

Corrosive to metals, Category 1

Skin sensitization, Category 1

Serious eye damage, Category 1

2.2 GHS label elements, including precautionary statements

Pictogram(s)
Signal word

Danger

Hazard statement(s)

H290 May be corrosive to metals

H317 May cause an allergic skin reaction

H318 Causes serious eye damage

Precautionary statement(s)
Prevention

P234 Keep only in original packaging.

P261 Avoid breathing dust/fume/gas/mist/vapours/spray.

P272 Contaminated work clothing should not be allowed out of the workplace.

P280 Wear protective gloves/protective clothing/eye protection/face protection.

Response

P390 Absorb spillage to prevent material damage.

P302+P352 IF ON SKIN: Wash with plenty of water/...

P333+P313 If skin irritation or rash occurs: Get medical advice/attention.

P321 Specific treatment (see ... on this label).

P362+P364 Take off contaminated clothing and wash it before reuse.

P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

P310 Immediately call a POISON CENTER/doctor/\u2026

Storage

P406 Store in a corrosion resistant/...container with a resistant inner liner.

Disposal

P501 Dispose of contents/container to ...

2.3 Other hazards which do not result in classification

none

Precursor and Product
Computational chemical data
  • Molecular Weight:74.04g/mol
  • Molecular Formula:C2H2O3
  • Compound Is Canonicalized:True
  • Exact Mass:74
  • Monoisotopic Mass:74
  • Complexity:55.9
  • Rotatable Bond Count:1
  • Hydrogen Bond Donor Count:1
  • Hydrogen Bond Acceptor Count:3
  • Topological Polar Surface Area:54.4A^2
  • Heavy Atom Count:5
  • Defined Atom Stereocenter Count:0
  • Undefined Atom Stereocenter Count:0
  • Defined Bond Stereocenter Count:0
  • Undefined Bond Stereocenter Count:0
  • Isotope Atom Count:0
  • Covalently-Bonded Unit Count:1
  • CACTVS Substructure Key Fingerprint: AAADcQBAMAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGgAACAAAAACggAIACAAAAgAI AAiQiAIAAAAAAAAAAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AA==
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