DL-alpha-Lipoic acid, USP grade CAS 1077-28-7

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CAS: 1077-28-7

MF: C₈H₁₄O₂S₂

MW: 206.33

Physical Description	Pale yellow to dark yellow powder
Identification	A, B, according to USP
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10ppm
Any Individual Impurity	≤ 0.1%
Total Impurities	≤ 2.0%
Chromatographic Purity	To pass test
Melting Point	60.0 - 62.0 °C
Specific Optical Rotation ([α]20/D)	-1.0 - +1.0 ° (c=5, ethanol)
Loss on Drying	≤ 0.2% (40°C, 3h)
Assay	99.0 - 101.0 % (dried basis)
Pharmacopoeia Specification(s)	USP
Specification Version	1.0

Pictograms
Signal word	Warning
Hazard statements	H312: Harmful in contact with skin H315: Causes skin irritation H319: Causes serious eye irritation H335: May cause respiratory irritation H336: May cause drowsiness or dizziness
Precautionary statements	P261: Avoid breathing dust/fume/gas/mist/vapors/spray. P280: Wear protective gloves/protective clothing/eye protection/face protection. P301+P312: IF SWALLOWED: call a POISON CENTER/doctor/... IF you feel unwell. P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do - continue rinsing.
Supplementary EUH statements
UN Number	-
WGK	WGK 2
SDS Version	3.0