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L-Histidine 98.5% White crystals or crystalline powder 98.5% OUCHEM

Name: L-Histidine 98.5% White crystals or crystalline powder 98.5% OUCHEM
Brand: OUCHEM
SKU: pr2206094118
Price: 40 USD
Availability: InStock

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CAS No.:

71-00-1

Grade:

Industrial Grade

Content:

98.5%

Port:

SHANGHAI

Brand:

OUCHEM

Packaging:

25kg CARDBOARD DRUM

Price valid (until):

2022-06-15

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QINGDAO OUCHEM TRADE CO,LTD.

Company Type:

Trader

Location:

China

Qualification:

Main Products:

Ethyl chloroacetate,Methyl chloroacetate,2-Thiophenecarboxaldehyde,Zinc Sulfide,DCOIT,Trichloroisocyanuric Acid

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Product Description
Seller Information
Inquiry History

Description

Product Detail

L-Histidine

CAS NO.71-00-1

Items	Specifications
Appearance	White crystals or crystalline powder
Assay:	98.5% Min.

Basic Info

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:

Other Food Additives

Characteristics

PSA:

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 Å² [M+H]+ [CCS Type: DT, Method: single field calibrated with Agilent tune mix (Agilent)]|132.41 Å² [M+H]+ [CCS Type: DT, Method: stepped-field]|131.47 Å² [M-H]- [CCS Type: DT, Method: stepped-field]|127 Å² [M+H]+ [CCS Type: TW, Method: calibrated with polyalanine]|131.7 Å² [M+H]+ [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|132.1 Å² [M+H]+ [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|134.6 Å² [M+Na]+ [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|134.8 Å² [M+Na]+ [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|128.1 Å² [M-H]- [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|128.5 Å² [M-H]- [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|130.01 Å² [M-H]- [CCS Type: DT, Method: stepped-field]|132.74 Å² [M+H]+ [CCS Type: DT, Method: stepped-field]|135.48 Å² [M+Na]+ [CCS Type: DT, Method: stepped-field]|128.9 Å² [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/

See More L-Histidine Properties 

Hazard Identification

Classification of the substance or mixture

Not classified.

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)	No symbol.
Signal word	No signal word
Hazard statement(s)	none
Prevention	none
Response	none
Storage	none
Disposal	none

Other hazards which do not result in classification

no data available

Handling and Storage

Precautions 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.

See More L-Histidine Safety Data Sheet 

Seller Information

Business Type:
Trader

Main Products:
Ethyl chloroacetate,Methyl chloroacetate,2-Thiophenecarboxaldehyde,Zinc Sulfide,DCOIT,Trichloroisocyanuric Acid

Location:
NO.2577, DONGFANG ROAD,WEIFANG,CHINA

Payment Terms:
TT against copy of documents,D/P,TT against B/L draft before shipment,100% TT in advance

Average lead Time:
300

Total Annual Revenue:
$25 million-$50 million

Total Employees:
11-50

Year of Establishment:
2004

Qingdao Ouchem Trade Co., Ltd is an enterprise dedicated to the import and export of chemicals, APIs and related intermediates. Founded in October 2000, the company now has an annual turnover of US$30 million with 28 employees. While providing customers with high cost-effective products, our team focuses on whole-hearted service, enjoying high profile and market share home and abroad. With main market in Japan, we have also established long-term cooperation with more than 20 countries including the United States, UK, Germany, Korea, Thailand, India, Uruguay, Argentina, Turkey, Spain, Egypt, etc., winning a good reputations and credibilitys in world market.
Diphenyl Sulfone（DPS） has been produced as GMP standard since the year of 2016, used mainly for thermal paper sensitizer, polysulfone resin, and engineering plastics, etc. It is exported to Japan, USA, Thailand, Brazil and so on.

Oct. 2000 Weifang Ouchem Trade Co., Ltd founded at Xinhua building, Weifang, Shandong, China
Capital: CNY 1,000,000.00
　　Jan. 2003 Qingdao Ouchem Trade Co., Ltd set up at Qingdao free trade zone
　　Capital: CNY 500,000.00
　　Dec. 2004 Weifang Ouchem Trade Co., Ltd capital increased to CNY 2,600,000.00
　　Oct. 2007 Weifang Ouchem Trade Co., Ltd moved to A-19, Huarun International Mansion,
　　No.2577, Dongfang Road, Weifang, Shandong, China
　　Apr. 2010“Audited Supplier” certified by Made-in-China and SGS
　　2007-2015“Advanced Foreign Trade Enterprise” and “Leading Imp.& Exp. Company”
　　Apr. 2019“ISO9001:2015”and“ISO14001:2015” certified by GIC

Inquiry History

7 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

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L-Histidine 98.5% White crystals or crystalline powder 98.5% OUCHEM

Product Description

Seller Information