L-histidine for 99 purity
7 Inquiries
71-00-1
99%
qingdao
25kg drum
2026-01-15
Chemical products
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Product Description
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Seller Information
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Inquiry History
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DescriptionBasic Info
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Product Name:
L-Histidine
Other Name:L-Histidine;Histidine,L-;Histidine;1H-Imidazole-4-propanoic acid,α-amino-,(S)-;(S)-4-(2-Amino-2-carboxyethyl)imidazole;Glyoxaline-5-alanine;L-(-)-Histidine;(S)-Histidine;(S)-α-Amino-1H-imidazole-4-propanoic acid;1H-Imidazole-4-alanine,(S)-;L-Alanine,3-(1H-imidazol-4-yl)-;NSC 137773;(2S)-2-Amino-3-(1H-imidazol-4-yl)propanoic acid;8: PN: EP2878667 TABLE: 5 claimed sequence;(S)-2-Amino-3-(1H-imidazol-4-yl)propanoic acid;(2S)-2-Azaniumyl-3-(1H-imidazol-5-yl)propanoate;(2S)-2-Amino-3-(1H-imidazol-4-yl)propanoic acid;124: PN: WO2020191245 SEQID: 252 claimed protein;103: PN: WO2021061872 SEQID: 103 claimed protein;150-35-6;7006-35-1;35479-49-3;35558-59-9;45955-20-2;54166-13-1;736075-03-9;155304-24-8
CAS No.:71-00-1
Molecular Formula:C6H9N3O2
InChIKeys:InChIKey=HNDVDQJCIGZPNO-YFKPBYRVSA-N
Molecular Weight:155.15
Exact Mass:155.15
BRN:4673585
EC Number:200-745-3
UNII:4QD397987E
DSSTox ID:DTXSID9023126
NCI Thesaurus Code:C29597
Color/Form:Needles or plates|COLORLESS
HScode:29332990
Categories:
Characteristics-
PSA:
92
XLogP3:-3.2
Appearance:White to off-white or pale yellow powder
Density:1.3092 (rough estimate)
Melting Point:287 °C (decomp)
Boiling Point:278.95°C (rough estimate)
Flash Point:282ºC
Refractive Index:1.731
Water Solubility:H2O: 41.6 g/L (25 ºC)
Storage Conditions:Store at RT.
Toxicity:LD50 orally in Rabbit: > 5110 mg/kg
Specific rotation:12.4 º (c=11,6N HCl)
Taste:Sweet
PKA:2.76(at 0 °C)
Dissociation Constants:2.76 (at 0 °C)|pK1'= 1.78; pK2'= 5.97; pK3'= 8.97|pKa = 2.76 @ 0 °C
Collision Cross Section:131.9 Ų [M+H]+ [CCS Type: DT, Method: single field calibrated with Agilent tune mix (Agilent)]|132.41 Ų [M+H]+ [CCS Type: DT, Method: stepped-field]|131.47 Ų [M-H]- [CCS Type: DT, Method: stepped-field]|127 Ų [M+H]+ [CCS Type: TW, Method: calibrated with polyalanine]|131.7 Ų [M+H]+ [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|132.1 Ų [M+H]+ [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|134.6 Ų [M+Na]+ [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|134.8 Ų [M+Na]+ [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|128.1 Ų [M-H]- [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|128.5 Ų [M-H]- [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|130.01 Ų [M-H]- [CCS Type: DT, Method: stepped-field]|132.74 Ų [M+H]+ [CCS Type: DT, Method: stepped-field]|135.48 Ų [M+Na]+ [CCS Type: DT, Method: stepped-field]|128.9 Ų [M-H]-
Experimental Properties:Softens @ 277 °C|Rhombic crystals (also forms a monohydrate) /L-histidine monohydrochloride/; rhombic crystals, isomorphous with the mono-HCl /L-histidine dihydrochloride/|UV: 11479 (Sadtler Research Laboratories Spectral Collection) /dl-Histidine/
Hazard IdentificationClassification of the substance or mixture
Not classified.
GHS label elements, including precautionary statements
Pictogram(s) No symbol. Signal word No signal word
Hazard statement(s) none
Precautionary statement(s) Prevention none
Response none
Storage none
Disposal none
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:
Trader
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Main Products:
Chemical products
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Location:
No. 7999 Jiankang East Street, Shangcheng Community, Qingchi Sub-district, Xincheng Sub-district, High-tech Zone, Weifang City, Shandong Province
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Total Annual Revenue:
$1 million-$2.5 million
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Total Employees:
5-10
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Year of Establishment:
2025
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Inquiry History7 Inquiries
Country Product Purchase Quantity Date Posted 
Egypt
L- Histidine
1.00 KG Apr 29, 2026 
India
L-Histidine
1 MT Apr 23, 2025
India
L-Histidine
1 G Jan 14, 2026 
Slovenia
L-HISTIDINE
400 KG Jan 9, 2026 
Greece
HISTIDINE (His, H)
700.00 KG Sep 24, 2025
Egypt
L-Histidine
250 KG Apr 22, 2024 
Bangladesh
Butyl Acetate
1.00 KG Nov 11, 2025 Post an enquiry for this product
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