ChemicalBook > CAS DataBase List > 2-Tetralin-1-yl-4,5-dihydro-1H-imidazole hydrochloride

2-Tetralin-1-yl-4,5-dihydro-1H-imidazole hydrochloride

Product Name
2-Tetralin-1-yl-4,5-dihydro-1H-imidazole hydrochloride
CAS No.
522-48-5
Chemical Name
2-Tetralin-1-yl-4,5-dihydro-1H-imidazole hydrochloride
Synonyms
TETRAHYDROZOLINE HCL;TETRAHYDROZOLINE HYDROCHLORIDE;tyzine;Soothe;Tizine;Visine h;ICI156834;Tinarhinin;ICI 156834;ICI-156834
CBNumber
CB1241978
Molecular Formula
C13H17ClN2
Formula Weight
236.74
MOL File
522-48-5.mol
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2-Tetralin-1-yl-4,5-dihydro-1H-imidazole hydrochloride Property

Melting point:
248-251°C
storage temp. 
Inert atmosphere,Room Temperature
solubility 
H2O: freely soluble
form 
Solid
color 
White to Off-White
Water Solubility 
H2O: freely soluble
alcohol: freely soluble
chloroform: very slightly soluble
diethyl ether: insoluble
InChIKey
BJORNXNYWNIWEY-UHFFFAOYSA-N
CAS DataBase Reference
522-48-5(CAS DataBase Reference)
EPA Substance Registry System
1H-Imidazole, 4,5-dihydro-2-(1,2,3,4-tetrahydro-1-naphthalenyl)-, monohydrochloride (522-48-5)
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Safety

Hazard Codes 
Xn,Xi
Risk Statements 
22-36/37/38
Safety Statements 
26-36
WGK Germany 
3
RTECS 
NJ4550000
HS Code 
2933290000
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
PHR1853
Product name
Tetrahydrozoline hydrochloride
Purity
Pharmaceutical Secondary Standard; Certified Reference Material
Packaging
500mg
Price
$257
Updated
2024/03/01
Sigma-Aldrich
Product number
1652001
Product name
Tetrahydrozoline hydrochloride
Purity
United States Pharmacopeia (USP) Reference Standard
Packaging
200mg
Price
$436
Updated
2024/03/01
TCI Chemical
Product number
T3148
Product name
Tetrahydrozoline Hydrochloride
Packaging
5G
Price
$176
Updated
2024/03/01
TCI Chemical
Product number
T3148
Product name
Tetrahydrozoline Hydrochloride
Packaging
25G
Price
$573
Updated
2024/03/01
Cayman Chemical
Product number
23004
Product name
Tetrahydrozoline (hydrochloride)
Purity
≥98%
Packaging
1g
Price
$37
Updated
2024/03/01
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2-Tetralin-1-yl-4,5-dihydro-1H-imidazole hydrochloride Chemical Properties,Usage,Production

Chemical Properties

Off-White Solid

Originator

Tyzine,Pfizer,US,1954

Uses

adrenergic agonist, nasal decongestant

Uses

An alpha agonist, causing constriction of conjunctival blood vessels. Used in over-the-counter eye drops, this compound relieves the redness left by ocular irritants.

Uses

2-Tetralin-1-yl-4,5-dihydro-1H-imidazole hydrochloride is an alpha agonist, causing constriction of conjunctival blood vessels,it is used in over-the-counter eye drops, this compound relieves the redness left by ocular irritants.

Definition

ChEBI: Tetrahydrozoline hydrochloride is the hydrochloride salt of tetryzoline. It is used as a nasal decongestant. It has a role as a sympathomimetic agent, a vasoconstrictor agent and a nasal decongestant. It contains a tetryzoline(1+).

Manufacturing Process

A mixture of 540 grams (9.0 mols) of ethylenediamine, 270 grams (1.53 mols) of 1,2,3,4tetrahydro-α-naphthoic acid, and 360 ml (4.32 mols) of concentrated hydrochloric acid was introduced into a two-liter, three-necked flask fitted with a thermometer, stirrer, and distillation takeoff. The mixture was distilled under a pressure of about 20 mm of mercury absolute until the temperature rose to 210°C. Thereafter, heating was continued under atmospheric pressure and when the temperature reached about 260°C, an exothermic reaction was initiated. The heat was then adjusted to maintain a reaction temperature of 275° to 280°C for 45 minutes and the mixture thereafter cooled to room temperature.
900 ml of 4 N hydrochloric acid was added and the aqueous layer stirred with warming until a clear, brown solution resulted. This brown solution was made strongly alkaline with sodium hydroxide. The oil that separated solidified and was collected on a filter leaving filtrate A. The solid was dissolved in 370 ml of alcohol with warming, and the solution was treated with 130 ml of concentrated hydrochloric acid with stirring and cooling. This acidified mixture was diluted with 300 ml of ether and chilled. The solid salt was collected and dried and the filtrate concentrated to approximately 300 ml, diluted with 300 ml of ether and the salt which separated collected and dried.
Filtrate A was extracted with ether, dried, acidified with alcoholic hydrogen chloride, and the salt which separated was collected and dried. There was thus obtained, when all the salt had been combined, 250 grams (69.3% of the theoretical yield) of 2-(1,2,3,4-tetrahydro-1-naphthyl)imidazoline hydrochloride, melting at 256° to 257°C.

brand name

Tetryzo- line is INN and BAN; Tetryzoline Hydrochloride is JAN; Tetrahydrozoline Nitrate is JAN.

Therapeutic Function

Nasal decongestant, Pharmaceutic aid

Biological Activity

Tetrahydrozoline is an α-adrenergic agonist and an imidazoline derivative. It plays a crucial role in the constriction of conjunctival blood vessels. Tetrahydrozoline is a common component of nasal and eye drop formulations.

2-Tetralin-1-yl-4,5-dihydro-1H-imidazole hydrochloride Preparation Products And Raw materials

Raw materials

Preparation Products

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View Lastest Price from 2-Tetralin-1-yl-4,5-dihydro-1H-imidazole hydrochloride manufacturers

Hebei Zhuanglai Chemical Trading Co Ltd
Product
2-Tetralin-1-yl-4,5-dihydro-1H-imidazole hydrochloride 522-48-5
Price
US $10.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
20 ton
Release date
2024-11-15
Hebei Chuanghai Biotechnology Co., Ltd
Product
TETRAHYDROZOLINE HYDROCHLORIDE 522-48-5
Price
US $10.00/g
Min. Order
1g
Purity
99%
Supply Ability
10 mt
Release date
2024-12-04
Hebei Mujin Biotechnology Co.,Ltd
Product
2-Tetralin-1-yl-4,5-dihydro-1H-imidazole hydrochloride 522-48-5
Price
US $0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
50000KG/month
Release date
2023-08-14

522-48-5, 2-Tetralin-1-yl-4,5-dihydro-1H-imidazole hydrochlorideRelated Search:


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  • 4,5-dihydro-2-(1,2,3,4-tetrahydro-1-naphthalenyl)-1h-imidazolmonohydrochlo
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  • dl-tetrahydrozolinehydrochloride
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