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Oxaceprol

CAS Number
33996-33-7
EC Number
251-780-6
Chemical Formula
C7H11NO4
Molecular Weight
173.17 g/mol

Description

Oxaceprol (CAS 33996-33-7 ), also known by the trade name Jonctum and commercially as acetyl hydroxyproline, is a modified amino acid derivative used in pharmaceutical and cosmetic formulations. It functions as a humectant, antioxidant stabilizer, and pH-buffering agent, supporting both skin conditioning and active ingredient performance in finished products for various industries. In pharmaceutical preparations, it has been developed as an active ingredient in anti-inflammatory and joint-support formulations, particularly for oral and topical dosage forms targeting connective tissue. Cosmetic formulators incorporate it into premium skincare products, such as serums, creams, and masks, where its moisture-retention capacity supports essential skin hydration claims. Its buffering behavior helps stabilize pH-sensitive formulations, making it relevant for developers working with peptide-based or enzyme-active systems in modern laboratory settings. The compound also appears in functional topical preparations where collagen-pathway support is a desired positioning attribute for high-end personal care and dermatological brands. This material is supplied as a white to off-white crystalline powder. It is available in pharmaceutical-grade specifications suited to drug product manufacturing and cosmetic-grade material. Buyers should confirm purity levels and documentation, including COA and relevant pharmacopoeial alignment, when sourcing for regulated end uses in global chemical markets. Contact us for supply of Oxaceprol Request Quote

Other Names (Synonyms)

(2S,4R)-1-acetyl-4-hydroxypyrrolidine-2-carboxylic acid | Jonctum | acetyl hydroxyproline | N-Acetylhydroxyproline | Q0XV76B96L | (-)-1-Acetyl-4-hydroxy-L-proline | L-Proline, 1-acetyl-4-hydroxy-, (4R)- | L-Proline, 1-acetyl-4-hydroxy-, trans-

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point132 °C
Boiling Point303.8°C (rough estimate)
Density1.3346 (rough estimate)
ColorWhite
FormCrystalline Powder
Vapor Pressure0Pa at 20℃
Refractive Index1.4490 (estimate)
Log P-1.51 at 20℃

Safety & Handling

Danger
GHS05· CorrosiveGHS07· Irritant

Hazard Statements

H315
H315
H318
H318
H335H335

Precautionary Statements

P261
P261
P264
P264
P271
P271
P280
P280
P317
P317
P319
P319
P321
P321
P405
P405
P501
P501
P265
P265
P352
P352
P340
P340
P317
P317
P364
P364
P233
P233
P338

Trade & Regulatory

HS Code29339900
Storage Class11 - Combustible Solids
WGK (Germany)3