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L-Histidine hydrochloride

L-Histidine hydrochloride structure

CAS No.: 645-35-2

Chemical Name:: L-Histidine hydrochloride

Synonyms: L-HISTIDINE HCL;L-HISTIDINE MONOHYDROCHLORIDE;Nsc257867;L-His-OH.HCl;L-Histidine hy;HISTIDINE-L HCL;L-Histine HCl monohydrat;L-Histidine hydrochloride;Histidine monohydrochloride;monohydrochloride,l-histidin

CBNumber:: CB6714677

Molecular Formula:: C6H10ClN3O2

Molecular Weight:: 191.62

MDL Number:: MFCD00064556

MOL File:: 645-35-2.mol

MSDS File:: SDS

Last updated:2026-05-28 03:12:03

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L-Histidine hydrochloride Properties

Melting point	243-244 °C(Solv: ethanol (64-17-5))
Density	1.472[at 20℃]
vapor pressure	0Pa at 20℃
storage temp.	Inert atmosphere,2-8°C
form	Crystalline
color	colorless
Water Solubility	149.55g/L at 20℃
BRN	4168261
Major Application	food and beverages
Cosmetics Ingredients Functions	SKIN CONDITIONING HAIR CONDITIONING
InChI	InChI=1/C6H9N3O2.ClH/c7-5(6(10)11)1-4-2-8-3-9-4;/h2-3,5H,1,7H2,(H,8,9)(H,10,11);1H/t5-;/s3
InChIKey	QZNNVYOVQUKYSC-USHJBNIQNA-N
SMILES	C(O)(=O)[C@H](CC1N=CNC=1)N.[H]Cl \|&1:3,r\|
LogP	-3.32 at 25℃
CAS DataBase Reference	645-35-2(CAS DataBase Reference)
FDA UNII	1D5Q932XM6
EPA Substance Registry System	L-Histidine, monohydrochloride (645-35-2)
UNSPSC Code	85151701
NACRES	NA.24

SAFETY

Risk and Safety Statements

Symbol(GHS)	GHS07
Signal word	Warning
Hazard statements	H302-H315-H319-H335
Precautionary statements	P261-P305+P351+P338
PPE	Eyeshields, Gloves
RIDADR	UN 1789 8/PG 3
WGK Germany	2
F	10
TSCA	TSCA listed
Storage Class	8B - Non-combustible corrosive hazardous materials
Hazard Classifications	Met. Corr. 1
REACH Registrations	Active

L-Histidine hydrochloride price More Price(32)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	43011	L-Histidine hydrochloride solution 100?mMaminoacidin0.1MHCl,analyticalstandard	645-35-2	5ml	$94.3	2026-04-30	Buy
Biosynth	FH182686	L-Histidine hydrochloride	645-35-2	100g	$150	2026-06-04	Buy
Biosynth	FH182686	L-Histidine hydrochloride	645-35-2	50g	$150	2026-06-04	Buy
Biosynth	FH182686	L-Histidine hydrochloride	645-35-2	250g	$220	2026-06-04	Buy
Biosynth	FH182686	L-Histidine hydrochloride	645-35-2	500g	$330	2026-06-04	Buy

Product number	Packaging	Price	Buy
43011	5ml	$94.3	Buy
FH182686	100g	$150	Buy
FH182686	50g	$150	Buy
FH182686	250g	$220	Buy
FH182686	500g	$330	Buy

L-Histidine hydrochloride Chemical Properties, Uses, Production

Description

L-Histidine hydrochloride can undergo racemization due to heating in water, leading to the formation of DL-histidine. It can be used as a supplement in conditions of riboflavin vitamin deficiency.

Chemical Properties

White needles, plates, or crystalline powder; slightly bitter taste. Decomp 250C. Sol in water; insol in alc, ether.

Uses

Amino acid.

Flammability and Explosibility

Not classified

L-Histidine hydrochloride synthesis

Synthesis of L-Histidine hydrochloride from D-Histidine

L-Histidine hydrochloride Preparation Products And Raw materials

Raw materials

D-Histidine

Preparation Products

4,5,6,7-tetrahydro-3H-imidazo[4,5-d]pyridine-6-carboxylic acid methyl ester

L-Histidine hydrochloride Suppliers

Global Suppliers ( 318)

Supplier	Tel	Email	Country	ProdList	Advantage
Huaibei Desung Biotech Co., Ltd.	0561-2337889 13515618601	390478052@qq.com	China	1967	58
Shanghai Xinhepeptide Biotechnology Co., Ltd	18800359267	talben@yeah.net	China	23	58
future industrial shanghai co., ltd	400-0066400 13621662912	sales@jonln.com	China	1989	65
Energy Chemical	400-0056266	sales8178@energy-chemical.com	China	44850	61
JinYan Chemicals(ShangHai) Co.,Ltd.	13817811078	sales@jingyan-chemical.com	China	9963	60
XiaoGan ShenYuan ChemPharm co,ltd	15527621225; 15527621225	1791901229@qq.com	China	6741	52
Syntechem Co.,Ltd		info@syntechem.com	China	12973	57
Tianjin heowns Biochemical Technology Co., Ltd.	400 638 7771	sales@heowns.com	China	14412	57
Hunan Hui Bai Shi Biotechnology Co., Ltd.	0731-85526065 13308475853	ivy@hnhbsj.com	China	7236	62
ShangHai YuanYe Biotechnology Co., Ltd.	15026964105	shyysw007@163.com	China	4998	60

Supplier	Advantage
Huaibei Desung Biotech Co., Ltd.	58
Shanghai Xinhepeptide Biotechnology Co., Ltd	58
future industrial shanghai co., ltd	65
Energy Chemical	61
JinYan Chemicals(ShangHai) Co.,Ltd.	60
XiaoGan ShenYuan ChemPharm co,ltd	52
Syntechem Co.,Ltd	57
Tianjin heowns Biochemical Technology Co., Ltd.	57
Hunan Hui Bai Shi Biotechnology Co., Ltd.	62
ShangHai YuanYe Biotechnology Co., Ltd.	60

View Latest Price from L-Histidine hydrochloride manufacturers

Update time	Product	Min. Order	Purity	Supply Ability	Manufacturer
2026-09-17	L-Histidine hydrochloride 645-35-2	1KG	98%min	500kgs	WUHAN FORTUNA CHEMICAL CO., LTD
2026-09-17	L-His.HCl 645-35-2	1kg	98%	1T+	Sichuan HongRi Pharma-Tech Co.,Ltd
2026-09-01	L-Histidine HCL 645-35-2	1kg	99%	10000kg	Shaanxi TNJONE Pharmaceutical Co., Ltd

L-Histidine hydrochloride
645-35-2
$0.00
98%min
WUHAN FORTUNA CHEMICAL CO., LTD

L-His.HCl
645-35-2
98%
Sichuan HongRi Pharma-Tech Co.,Ltd

L-Histidine HCL
645-35-2
$0.00
99%
Shaanxi TNJONE Pharmaceutical Co., Ltd

645-35-2 (L-Histidine hydrochloride) Related Search:

L-Histidine Methoxyammonium chloride Topotecan hydrochloride Methyl L-histidinate dihydrochloride DL-HISTIDINE HYDROCHLORIDE 1-HYDRATE,DL-HISTIDINE HYDROCHLORIDE MONOHYDRATE

L-Histidine hydrochloride monohydrate D-HISTIDINE HYDROCHLORIDE MONOHYDRATE 99% D-Histidine L-Histidine hydrochloride Poly-L-histidine

N-Me-His-OH HCl H-His(1-Me)-OH HCl H-Gly-His-OH HCl N-Me-D-His-OH HCl N(tau)-methyl-L-histidine hydrochloride

H-2,5-diiodo-His-OH HCl Poly-L-histidine hydrochloride MW DL-Histidine·HCl

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monohydrochloride,l-histidin HISTIDINE-L HCL L-(+)-HISTIDINE MONOHYDROCHLORIDE L-Histidine·hydrochloric acid (-)-Histidine monohydrochloride Histidine monohydrochloride Histidine monohydrochloride, L-(+)- Histidine, monohydrochloride, L- Nsc257867 L-Histidine hydrochloride L-Hisidine Monohydrocholoride L-Histidine,hydrochloride (1:1) (S)-2-aMino-3-(1H-iMidazol-4-yl)propanoic acid hydrochloride L-Histidine monohydrocholoride L-His-OH.HCl L-Histine HCl monohydrat L-Histidine hydrochloride USP/EP/BP Manufacturer L-Histidine Hydrochloride CAS No 645-35-2 L-Histidine hy mM amino acid in 0.1 M HCl, analytical standard Factory price CAS 645-35-2 L-Histidine hydrochloride in stock Histidine Hydrochloride (for injection) L-Histidine hydrochloride solution L-hitidine monohydrochloride L-HISTIDINE MONOHYDROCHLORIDE L-HISTIDINE HCL 645-35-2 5394-29-2 Amino Acids Amino AcidsAlphabetic Amino Acids, Peptides and Proteins H HA -HT Life Sciences Standards