3-Hydroxypropionic Acid CAS 503-66-2

3-Hydroxypropionic Acid is colourless to light yellow transparent liquid, easily soluble in water. As a bio-based platform compound, it is mainly used in the synthesis of acrylic acid, degradable plastics (e.g. PHA) and food additives, and its green manufacturing potential is outstanding. It needs to be stored at low temperature and protected from light, and avoid contact with strong oxidants.

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Model:
503-66-2
Brand:
Futurechemical
Code:
503-66-2

Product Description

3-Hydroxypropionic acid Basic information
Product Name:	3-Hydroxypropionic acid
CAS:	503-66-2
MF:	C3H6O3
MW:	90.08
EINECS:	207-974-8
Mol File:	503-66-2.mol
3-Hydroxypropionic acid Chemical Properties
Melting point	16.8°C (estimate)
Boiling point	212°C (rough estimate)
density	1.066 g/mL at 25 °C
refractive index	1.4489
storage temp.	2-8°C
solubility	Ethanol, Methanol, Water
pka	4.51(at 25℃)
form	Colourless Solution
color	Colorless to Almost colorless
Water Solubility	270.1g/L(25 ºC)
InChI	InChI=1S/C3H6O3/c4-2-1-3(5)6/h4H,1-2H2,(H,5,6)
InChIKey	ALRHLSYJTWAHJZ-UHFFFAOYSA-N
SMILES	C(O)(=O)CCO
CAS DataBase Reference	503-66-2(CAS DataBase Reference)

3-Hydroxypropionic Acid CAS 503-66-2 C3H6O3 Metal surface treatment agent Food preservative Cosmetic pH adjuster Detergent additive Polyurethane foam additive Water-based coating coalescent

Quality Assurance

Full-Process Quality Control: From incoming raw material inspection to in-process monitoring and final outgoing checks, every batch is inspected at each production stage against strict acceptance standards.
Third-Party Certified & Tested: Our quality management system is certified to ISO 9001, and products are regularly tested by accredited laboratories (e.g. SGS, TÜV). Test reports are available on request.
100% Batch Traceability: Each batch carries a unique lot number that links raw material records, production parameters, and test results, enabling complete traceability from factory to final delivery.
Pre-Shipment Inspection: Every order passes a final pre-shipment inspection, with inspection photos and reports shared before dispatch.

FAQ From Customers

Q1: What is the minimum order quantity?

A: There is no quantity limit for the first sample or trial order. Just tell us the actual quantity you need.
Q2: How can I confirm that the quality meets the requirements?

A: Provide your specifications, and our technical team will check them or customize them for you; we can provide TDS, MSDS, and COA, and accept third-party testing.
Q3: How do you ensure stable quality?

A: We manufacture under an ISO 9001 quality system, test every batch before release, and retain samples for 24 months for traceability.
Q4: Do you provide samples?

A: Yes — Free samples are available; freight is at buyer's expense for express delivery.