L-(+)-Ergothioneine (EGT) - High Purity Antioxidant Supplier
GMP HALAL COA 9 Inquiries
497-30-3
Industrial Grade
99%
CHINA
1KG;5KG;10KG
Yes
2026-11-14
Steroid
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Product Description
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Seller Information
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Inquiry History
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DescriptionECHEMI Editorial ReferenceErgothioneine, an imidazole-2-thione derivative of histidine betaine, is synthesized by certain bacteria and fungi. Ergothioneine is generally considered an antioxidant[1].CertificatesBasic Info
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Product Name:
Ergothioneine
Other Name:1H-Imidazole-4-ethanaminium,α-carboxy-2,3-dihydro-N,N,N-trimethyl-2-thioxo-,inner salt,(αS)-;1H-Imidazole-4-ethanaminium,α-carboxy-2,3-dihydro-N,N,N-trimethyl-2-thioxo-,hydroxide,inner salt,(S)-;Ammonium,[1-carboxy-2-(2-mercaptoimidazol-4-yl)ethyl]trimethyl-,hydroxide,inner salt,L-(+)-;Ergothioneine;Sympectothion;Thiasine;Thioneine;Histidine,2-mercapto-,trimethylbetaine;Histidine,2-mercapto-N,N-dimethyl-,betaine;L-Ergothioneine;2-Mercapto-N,N-dimethylhistidine methyl ester betaine;2-Mercaptohistidine trimethylbetaine;Ergothionine;1H-Imidazole-4-ethanaminium,α-carboxy-2,3-dihydro-N,N,N-trimethyl-2-thioxo-,inner salt,(S)-;2-Mercaptohistidine betaine;NSC 7175;Thiotane;thiotaine;Phytothioneine;(S)-5-(2-Carboxy-2-(trimethylammonio)ethyl)-1H-imidazole-2-thiolate;(2S)-3-(2-Sulfanyl-1H-imidazol-4-yl)-2-(trimethylazaniumyl)propanoate;616-50-2;644-57-5;6330-63-8
CAS No.:497-30-3
Molecular Formula:C9H15N3O2S
InChIKeys:InChIKey=SSISHJJTAXXQAX-ZETCQYMHSA-N
Molecular Weight:229.3
Exact Mass:229.088501
EC Number:207-843-5
Categories:
Characteristics-
PSA:
96.3
XLogP3:0.3
Appearance:Solid
Density:1.2541 (rough estimate)
Melting Point:280 °C (decomp)
Storage Conditions:-20ºC
Hazard IdentificationClassification of the substance or mixture
Skin irritation, Category 2
Eye irritation, Category 2
Specific target organ toxicity â single exposure, Category 3
GHS label elements, including precautionary statements
Pictogram(s) 
Signal word Warning
Hazard statement(s) H315 Causes skin irritation
H319 Causes serious eye irritation
H335 May cause respiratory irritation
Precautionary statement(s) Prevention P264 Wash ... thoroughly after handling.
P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P271 Use only outdoors or in a well-ventilated area.
Response P302+P352 IF ON SKIN: Wash with plenty of water/...
P321 Specific treatment (see ... on this label).
P332+P317 If skin irritation occurs: Get medical help.
P362+P364 Take off contaminated clothing and wash it before reuse.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P319 Get medical help if you feel unwell.
Storage P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P405 Store locked up.
Disposal P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.
Other hazards which do not result in classification
no data available
Handling and StoragePrecautions for safe handling
Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.
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Seller Information
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Business Type:
Manufactory
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Main Products:
Steroid
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Location:
KWUN TONG KLN, HONG KONG
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Payment Terms:
TT against copy of documents,L/C
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Average lead Time:
1 days
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Total Annual Revenue:
$1 million-$2.5 million
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Total Employees:
11-50
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Year of Establishment:
2025
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Inquiry History9 Inquiries
Country Product Purchase Quantity Date Posted 
India
ergothioneine
1 G Jul 23, 2026 
Austria
Ergothioneine 99% White powder
10 G Jun 29, 2026 
United States
L-Ergothioneine
1 KG Jul 4, 2025 
Singapore
Ergothioneine 99% white powder
10 MG Mar 18, 2024
India
Ergothioneine 99% white powder
0.025 G Jan 18, 2024 
Denmark
ergothioneine
1 MT Dec 2, 2024 
Greece
Ergothioneine
1 KG Apr 12, 2024
India
Ergothioneine
1 KG Mar 12, 2024
India
Ergothioneine
25 KG Nov 4, 2024 Post an enquiry for this product
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