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CAS 50-21-5

CAS 50-21-5 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 50-21-5
CAS 50-21-5PubChem CID 612

Lactic Acid

2-hydroxypropanoic acid is a 2-hydroxy monocarboxylic acid that is propanoic acid in which one of the alpha-hydrogens is replaced by a hydroxy group. It has a role as a Daphnia magna metabolite and an algal metabolite. It is functionally related to a propionic acid. It is a conjugate acid of a lactate. — ChEBI

IUPAC name
2-hydroxypropanoic acid
Molecular formula
C3H6O3
Molecular weight
90.08 g/mol
Exact mass
90.031694049 Da
XLogP3
-0.7
Topological polar surface area
57.5 Ų
Hydrogen-bond donors
2
Hydrogen-bond acceptors
3
Covalent units
1
Defined stereocentres
0

Also known as

DL-Lactic acid2-hydroxypropionic acidMilk acidTonsillosanRacemic lactic acidOrdinary lactic acidAcidum lacticumEthylidenelactic acid
16 more reported names
LactovaganMilchsaeureLactic acid, dl-Kyselina mlecnaLacticum acidumPropanoic acid, 2-hydroxy-598-82-3alpha-Hydroxypropionic acidLactic acid USPAethylidenmilchsaeure(RS)-2-HydroxypropionsaeureFEMA No. 2611MilchsaureLurexPropionic acid, 2-hydroxy-SY-83
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External database identifiers

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Records for CAS 50-21-5

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How CAS 50-21-5 is used on this site

CAS 50-21-5 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 0 EU annex records share this identifier, which helps you cross-check whether the same substance appears under one regulatory context or several.

Use this page when a supplier specification, SDS or raw-material dossier gives you CAS 50-21-5 and you need to see every linked Annex II–VI record in one place. The entry cards above are the quickest route to concentration limits, warnings, annex placement and product-type conditions.