Alpha Lipoic Acid (ALA), CAS 1077-28-7, is also known as thioctic acid. It is an organosulfur compound. Confirm stereochemical form, physical form, assay requirement, packaging and documentation needs before requesting quotation.
Alpha Lipoic Acid (ALA) CAS 1077-28-7
- CAS: 1077-28-7
- Synonyms: Alpha-lipoic acid; alpha-Lipoic acid; Thioctic acid; 1,2-Dithiolane-3-pentanoic acid
- Molecular Formula: C₈H₁₄O₂S₂
- Grade: Confirm stereochemical form, physical form, assay requirement, packaging and documentation needs.
- Package: Confirm packaging compatible with the offered form and destination requirements.
Product Description
Product name: Alpha Lipoic Acid (ALA)
Synonyms: Alpha-lipoic acid; alpha-Lipoic acid; Thioctic acid; 1,2-Dithiolane-3-pentanoic acid
CAS number: 1077-28-7
Molecular formula: C₈H₁₄O₂S₂
Molecular weight: 206.33
Chemical identity: Alpha Lipoic Acid (ALA), CAS 1077-28-7, is an organosulfur compound also called thioctic acid.
Identity boundary: CAS 1077-28-7 is the requested identifier. Confirm whether the offered material is racemic or a specified enantiomer, and match the identity across the quotation, specification and requested COA/TDS/SDS.
Commercial form: Confirm the offered physical form in the current product-specific specification.
Grade and content: Confirm stereochemical form, physical form, assay requirement, packaging and documentation needs.
Application boundary: Assess suitability against the buyer’s formulation, regulatory and quality requirements before procurement.
Documents: Request current product-specific specifications, packaging details and document availability.
RFQ information: State the required form, quantity, intended use, destination and required documents in the RFQ.
FAQ - Technical & Supply Chain
-
Q:
Can CAS 1077-28-7 be used without confirming the stereochemical form?
A: CAS 1077-28-7 identifies the requested alpha-lipoic acid product, but the name alone is not enough to establish stereochemical form. Some databases also list CAS 62-46-4 under lipoic-acid names. Specify whether racemic or an individual enantiomer is required and confirm the exact CAS, form and assay in the quoted product documents. -
Q:
What should be assessed for the intended use of Alpha Lipoic Acid?
A: Assess suitability against the buyer's formulation, regulatory and quality requirements before procurement. The product page does not establish a therapeutic, dietary-supplement or compendial claim, so the application and required grade must be confirmed separately. -
Q:
Which specifications should be agreed for Alpha Lipoic Acid?
A: Confirm stereochemical form, physical form, assay requirement, optical purity where relevant, related substances, residual solvents and required impurity limits. The product specification should correspond to the exact CAS and lot being quoted. -
Q:
What packaging and storage conditions should be specified?
A: Confirm packaging compatible with the offered form and destination requirements. Check light, oxygen and temperature sensitivity, and use tightly closed, appropriately protected containers under the supplier's recommended conditions. -
Q:
What appearance, melting range and solubility should be expected for Alpha Lipoic Acid?
A: Free alpha-lipoic acid (CAS 1077-28-7) is usually a pale-yellow solid and is practically insoluble in water. A melting range around 60–62 °C is reported for the racemic form; salts and formulated products may behave differently. Confirm the offered stereochemical form, assay, melting range and solubility test conditions against the quoted product specification and COA.
Ordering & Documentation
Key information for document requests, quotations, and supply planning.
Documents
Tell us which documents your procurement team needs. Before an order, we will check whether the quoted source can provide them for the offered lot.
Quotation
Send the CAS number, grade, quantity, packing preference and destination.
Sample & Supply
Ask whether samples, trial quantities or repeat orders are possible. We will check each request against the sourced product and current offer.
Storage & Shipping
Product-specific conditions are confirmed before order.



