Propyl Gallate CAS 121-79-9

Propyl gallate (PG), also known as propyl gallate, is a synthetic oil-soluble antioxidant. Oil-soluble antioxidants are all phenolic compounds, including butylhydroxyanisole (BHA), dibutylhydroxytoluene (BHT), tert-butylhydroquinone (TBHQ) and so on, which are able to provide hydrogen atoms to combine with free radicals generated from the auto-oxidation of fats and oils, to form a relatively stable structure, and to block the chain auto-oxidation of fats and oils to achieve the purpose of antioxidation.

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Model:
121-79-9
Brand:
Future Chemical
Code:
121-79-9

Product Description

Propyl gallate Basic information
Product Name:	Propyl gallate
CAS:	121-79-9
MF:	C10H12O5
MW:	212.2
EINECS:	204-498-2
Mol File:	121-79-9.mol
Propyl gallate Chemical Properties
Melting point	146-149 °C(lit.)
Boiling point	312.03°C (rough estimate)
density	1.21
vapor pressure	0Pa at 20℃
refractive index	1.5140 (estimate)
FEMA	2947 \| PROPYL GALLATE
Fp	187℃
storage temp.	Store below +30°C.
solubility	ethanol: 50 mg/mL
form	powder
pka	8.11(at 25℃)
color	White to light beige
Odor	bland
biological source	synthetic
Water Solubility	0.35 g/100 mL (25 ºC)
Merck	147,859
BRN	1877976
InChIKey	ZTHYODDOHIVTJV-UHFFFAOYSA-N
LogP	1.8
CAS DataBase Reference	121-79-9(CAS DataBase Reference)
NIST Chemistry Reference	Benzoic acid, 3,4,5-trihydroxy-, propylester(121-79-9)
EPA Substance Registry System	Propyl gallate (121-79-9)

Propyl Gallate CAS 121-79-9 C10H12O5 Food preservation and preservation antioxidant Thickener Dispersant

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.