Urea

Independent reference data for Urea (CAS 57-13-6), compiled from public chemistry databases.

Registry identifiers across databases

Computed descriptors

Physicochemical values on record

Documented uses on record

A compound (CO(NH2)2), formed in the liver from ammonia produced by the deamination of amino acids. It is the principal end product of protein catabolism and constitutes about one half of the total urinary solids. [ChemIDplus] Used as a mordant in textile dyeing; [www.ci.tucson.az.us/arthazards/medium.html] Used to make fertilizer, feed additives, urea-formaldehyde resins and pharmaceuticals; Humans excrete 20-35 grams per day and have blood levels of 200-400 mg/L. [AIHA]Textiles (Printing, Dyeing, or Finishing) [Category: Industry]

Synonyms and trade names

urea; 57-13-6; carbamide; Carbonyldiamide; Ureophil; Carbonyldiamine; Ureaphil; Keratinamin; Urevert; Alphadrate; Aquadrate; Carbaderm; Pastaron; Urepearl; Carbonyl diamide; Carbamide resin

Regulatory listings held on file

Regulatory & Food Contact	FDA Substance added to food: FORMULATION AID FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS CHEWING_GUM_BASE_COMPOUND; TEXTURIZER; THICKENER; YEAST_FOOD: Food Additives NOT SPECIFIED Use at levels of up to 3% in chewing-gum not of toxicological concern TRS 837-JECFA 41/28
GHS notification summary	96.1% (4430 / 4611)

GHS hazard classification

GHS notification summary	96.1% (4430 / 4611)

This chemical does not meet GHS hazard criteria for 96.1% (4430 of 4611) of all reports.

Reported as not meeting GHS hazard criteria by 4430 of 4611 companies (only 3.9% companies provided GHS information). For more detailed information, please visit ECHA C&L website.

What the public record says

Clean-up · CAS 57-13-6 · CH4N2O. UNII 8W8T17847W. Melting Point: 275 °F (NTP, 1992); Melting Point: 132.7; Melting Point: 132 °C to 135 °C.

Physical description and handling notes

Source: PubChem / Wikidata; the batch COA governs where values differ.