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Tolazoline

Product Name
Tolazoline
CAS No.
59-98-3
Chemical Name
Tolazoline
Synonyms
Vasodil;Vasimid;Artonil;Kasimid;Lambril;Priscol;Benzolin;ciba3259;Divascol;Imidalin
CBNumber
CB0236054
Molecular Formula
C10H12N2
Formula Weight
160.22
MOL File
59-98-3.mol
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Tolazoline Property

Melting point:
66-69 °C(lit.)
Boiling point:
188°C/20mmHg(lit.)
Density 
1.0849 (rough estimate)
refractive index 
1.6392 (estimate)
storage temp. 
2-8°C
solubility 
alcohol: freely soluble
pka
pKa 10.3(H2O t undefined I = 0.1) (Uncertain)
form 
Solid
color 
Crystals from pet ether
Merck 
14,9506
CAS DataBase Reference
59-98-3(CAS DataBase Reference)
NIST Chemistry Reference
1H-Imidazole, 4,5-dihydro-2-(phenylmethyl)-(59-98-3)
EPA Substance Registry System
1H-Imidazole, 4,5-dihydro-2-(phenylmethyl)- (59-98-3)
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Safety

Hazard Codes 
Xn
Risk Statements 
20/21/22-36/37/38
Safety Statements 
26-28-36/37/39-45
WGK Germany 
3
RTECS 
NJ1925000
HS Code 
2933299090
Toxicity
cyt-ham:lng 62,500 mg/L GMCRDC 27,95,81
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

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

P280Wear protective gloves/protective clothing/eye protection/face protection.

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

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
293490
Product name
2-Benzylimidazoline
Purity
99%
Packaging
1g
Price
$50
Updated
2023/01/07
Sigma-Aldrich
Product number
293490
Product name
2-Benzylimidazoline
Purity
99%
Packaging
5g
Price
$64.6
Updated
2023/01/07
TCI Chemical
Product number
B3806
Product name
2-Benzylimidazoline
Purity
>97.0%(GC)(T)
Packaging
5g
Price
$68
Updated
2024/03/01
Chem-Impex
Product number
37653
Product name
2-Benzylimidazoline,≥97%(Assaybytitration,GC)
Purity
≥97%(Assaybytitration,GC)
Packaging
5G
Price
$131.62
Updated
2021/12/16
AK Scientific
Product number
C867
Product name
Tolazoline
Packaging
5g
Price
$173
Updated
2021/12/16
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Tolazoline Chemical Properties,Usage,Production

Originator

Priscoline,Ciba,US,1948

Uses

Tolazoline is used for treating stable forms of pulmonary hypertension in newborns, and in cases where systemic arterial oxygenation cannot be achieved in the usual manner under careful observation of professionals.

Uses

Reactant for synthesis of imidazoline-containing drug

Definition

ChEBI: A member of the class of imidazoles that is 4,5-dihydro-1H-imidazole substituted by a benzyl group.

Manufacturing Process

The phenyl-acetiminoether hydrochloride of the formula from 12 parts of benzylcyanide and ethanol and HCl is mixed with 8 parts of ethylenediamine hydrate which has been diluted with little alcohol, whereby the crystals go into solution. The whole is then heated on the water-bath until the ammonia odor has disappeared, cooled, concentrated caustic potash solution added, and the separated oil extracted with ether. The solution is dried with potassium carbonate and potassium hydroxide. After evaporation a pale oil is left which distills at 147°C under a pressure of 9 mm and which solidifies in the condenser to a white crystalline mass. The yield amounts to 90% of the theory. The hydrochloride melts at 168° to 170°C.

Therapeutic Function

Vasodilator

General Description

2-Benzylimidazoline is an active vasodilator.

Pharmacology

Tolazoline is a weak, reversible α-adrenoblocker that lowers resistance of peripheral blood vessels and elevates venous capacity. However, it also exhibits β-adrenomimetic activity, which consists of the stimulation of cardiac work and is manifest as tachycardia, cholinergic activity, which consists of stimulation of the gastrointestinal tract, and histamine-like activity, which consists of stimulation of gastric secretion.

Safety Profile

Poison by ingestion,intraperitoneal, and intravenous routes. Mutation data reported. When heated to decomposition it emits toxicfumes of NOx.

Synthesis

Tolazoline, 2-benzyl-2-imidazoline (12.2.7), is synthesized by the heterocyclation of the ethyl ester of iminophenzylacetic acid with ethylendiamine (12.2.6), which forms the desired product (12.2.7) [32¨C35]. The structure of tolazoline is strikingly similar to |á-adrenergic agonists, which are antiedema sympathomimetics.

Tolazoline Preparation Products And Raw materials

Raw materials

Preparation Products

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Tolazoline Suppliers

LGM Pharma
Tel
1-(800)-881-8210
Fax
615-250-9817
Email
inquiries@lgmpharma.com
Country
United States
ProdList
2127
Advantage
70
Musechem
Tel
+1-800-259-7612
Fax
+1-800-259-7612
Email
info@musechem.com
Country
United States
ProdList
4662
Advantage
60
TargetMol Chemicals Inc.
Tel
+1-781-999-5354 +1-00000000000
Email
marketing@targetmol.com
Country
United States
ProdList
19892
Advantage
58
InvivoChem
Tel
+1-708-310-1919 +1-13798911105
Fax
708-557-7486
Email
sales@invivochem.cn
Country
United States
ProdList
6393
Advantage
58
Aladdin Scientific
Tel
+1-+1(833)-552-7181
Email
sales@aladdinsci.com
Country
United States
ProdList
57511
Advantage
58
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View Lastest Price from Tolazoline manufacturers

Hebei Duling International Trade Co. LTD
Product
Tolazoline 59-98-3
Price
US $58.00-15.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
20MT
Release date
2024-05-22
Zhuozhou Wenxi import and Export Co., Ltd
Product
Tolazoline 59-98-3
Price
US $15.00-10.00/KG
Min. Order
1KG
Purity
99%+ HPLC
Supply Ability
Monthly supply of 1 ton
Release date
2021-08-11
Zhuozhou Wenxi import and Export Co., Ltd
Product
2-Benzylimidazoline 59-98-3
Price
US $15.00-10.00/KG
Min. Order
1KG
Purity
99%+ HPLC
Supply Ability
Monthly supply of 1 ton
Release date
2021-06-27

59-98-3, TolazolineRelated Search:


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