Description

L-(+)-Erythrulose is a high-purity, naturally occurring ketose sugar and a key building block in organic synthesis. Its primary commercial value lies in its role as a highly effective and gentle browning agent for skin, making it a cornerstone ingredient in the self-tanning and cosmetic industries. This product is essential for manufacturers in the personal care, pharmaceutical, and specialty chemical sectors seeking a reliable, high-quality raw material. We supply L-(+)-Erythrulose CAS NO 533-50-6 to meet the stringent demands of global B2B customers.

Application

• Self-Tanning / Sunless Tanning Formulations: The primary application, where it reacts with amino acids in the skin's stratum corneum to produce a natural-looking, golden-brown color (Maillard reaction) without UV exposure.
• Cosmetic Actives & Skin Care: Used in anti-aging creams, lotions, and serums for its gentle tanning effect and potential skin-conditioning properties.
• Pharmaceutical Intermediates: Serves as a chiral starting material or intermediate in the synthesis of more complex pharmaceutical compounds and fine chemicals.
• Biochemical Research: Employed as a substrate in enzymatic studies and metabolic pathway research due to its role in carbohydrate metabolism.
• Food-Grade Additives (Potential): While not a sweetener, it may find use in specialized food applications as a browning agent or precursor for flavor compounds.
• Hair Dye & Colorant Formulations: Incorporated into progressive hair colorants to provide subtle, gradual darkening effects.

Basic Information

Product Name	L-(+)-Erythrulose
CAS No.	533-50-6
Molecular Formula	C4H8O4
Molecular Weight	120.10 g/mol
Synonyms	Erythrulose; (R)-Erythrulose; L-Erythrulose; L-threo-2-Ketotetrose; D-glycero-Tetrulose; Erythulose; 1,3,4-Trihydroxy-2-butanone; NSC 92366
EINECS	208-571-6

Quality Control

Our L-(+)-Erythrulose is produced and tested under a rigorous quality management system. Each batch is analyzed to ensure it meets high-purity standards suitable for cosmetic and pharmaceutical applications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment. We can support compliance requirements for GMP, ISO, REACH, and FDA regulated environments upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and should be kept under an inert atmosphere (e.g., nitrogen) after opening to prevent oxidation and moisture uptake. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid or syrup
Identification (IR)	Conforms to reference standard
Assay (HPLC)	≥ 98.0%
Optical Rotation [α]D20	+14° to +16° (c=1 in H2O)
Water Content (KF)	≤ 2.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm
Microbial Limits	Meets cosmetic-grade requirements

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.