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298-12-4 - Glyoxylic acid, 50% w/w aq. soln. - B25149 - Alfa Aesar

B25149 Glyoxylic acid, 50% w/w aq. soln.

CAS-Nummer
298-12-4
Synonyme

Größe Preis ($) Menge Verfügbarkeit
250g 33,27
1000g 94,14
5000g 368,74
Zum Warenkorb hinzufügen Zur Angebotsanfrage hinzufügen Artikel anzeigen

Glyoxylic acid, 50% w/w aq. soln.

MDL
MFCD00006958
EINECS
206-058-5

Chemische Eigenschaften

Formel
OHCCO2H
Molmasse
74.04
Schmelzpunkt
-93°
Siedepunkt
111°
Dichte
1.339
Löslichkeit
Miscible with ethanol. Slightly miscible with ether and benzene. Immiscible with esters.

Anwendungen

Glyoxylic acid is used in Hopkins Cole reaction, which is used in the detection of tryptophan in proteins. It reacts with phenol to get 4-hydroxymandelic acid, which on further reaction with ammonia gives hydroxyphenylglycine, as a precursor to the drug amoxicillin. It is also used as a starting material for the preparation of 4-hydroxyphenylacetic acid, which is used to get atenolol. It is involved in the production of agrochemicals, aromas, cosmetic ingredient and pharmaceutical intermediate. It is also used in water purification and in the preservation of food. Further, it is employed as precursor in the synthesis of iron chelates. In addition to this, it serves as an intermediate of varnish material and dyes.

Bemerkungen

Incompatible with metals, alkalies, strong oxidizing agents and strong bases.

Literaturverweise

For use in aqueous hetero Diels-Alder reactions, see: Tetrahedron, 50, 10265 (1994).

Reagent for the facile deprotection of oximes in aqueous medium: Tetrahedron Lett., 45, 3161 (2004).

Qin, W.; Guo, R. Metallization of polyester fabric by autocatalytic copper plating process using glyoxylic acid as a reducing agent. Fiber Polym. 2015, 16 (8), 1671-1675.

Uslu, H.; Datta, D.; Kumar, S. Investigations on the Reactive Extraction of Glyoxylic Acid by Amberlite-LA2 Dissolved in Alcoholic Diluents. Sep. Sci. Technol. 2015, 50 (17), 2658-2667.

GHS Gefahren- und Sicherheitshinweise

Gefahrenhinweise (EU): H314-H317

Causes severe skin burns and eye damage. May cause an allergic skin reaction.

Sicherheitshinweise: P260-P261-P280-P303+P361+P353-P305+P351+P338-P301+P330+P331-P304+P340-P310-P405-P501a

Do not breathe dust/fume/gas/mist/vapours/spray. Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Immediately call a POISON CENTER or doctor/physician. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Weitere Referenzen

Gefahrenklasse
8
Verpackungsgruppe
III
Harmonized Tariff Code
2918.30
TSCA
Yes

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