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Phentolamine mesilate

CAS No.
65-28-1
Chemical Name:
Phentolamine mesilate
Synonyms
PHENTOLAMINE MESYLATE;VASOMAX;REGITIN;PhentoL;FE202158;FE 202158;amine MesyL;Phentolamine me;REGITIN MESYLATE;regitinemesylate
CBNumber:
CB5708736
Molecular Formula:
C18H23N3O4S
Molecular Weight:
377.46
MDL Number:
MFCD00134201
MOL File:
65-28-1.mol
Last updated:2025-03-31 20:14:24

Phentolamine mesilate Properties

Melting point 180-182 °C(lit.)
Density 1.2256 (rough estimate)
refractive index 1.6320 (estimate)
storage temp. 2-8°C
solubility ethanol: 26 mg/mL
form powder
color white to off-white
Water Solubility 50 mg/mL
Merck 14,7264
Stability Aq. Solutions Cannot be Stored
InChI InChI=1S/C17H19N3O.CH4O3S/c1-13-5-7-14(8-6-13)20(12-17-18-9-10-19-17)15-3-2-4-16(21)11-15;1-5(2,3)4/h2-8,11,21H,9-10,12H2,1H3,(H,18,19);1H3,(H,2,3,4)
InChIKey OGIYDFVHFQEFKQ-UHFFFAOYSA-N
SMILES N(CC1=NCCN1)(C1C=CC(C)=CC=1)C1C=CC=C(O)C=1.S(=O)(=O)(O)C
FDA UNII Y7543E5K9T
NCI Drug Dictionary phentolamine mesylate
UNSPSC Code 41116107
NACRES NA.77

Pharmacokinetic data

Protein binding 54%
Excreted unchanged in urine 13%
Biological half-life 19 minutes / -

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H335
Precautionary statements  P261-P264-P270-P301+P312-P302+P352-P305+P351+P338
Hazard Codes  Xn,Xi
Risk Statements  20/21/22-36/37/38
Safety Statements  26-36
RIDADR  3249
WGK Germany  3
RTECS  SL5430000
HazardClass  6.1(b)
PackingGroup  III
HS Code  29332900
Toxicity LDLo scu-rat: 275 mg/kg NIIRDN 6,667,82
NFPA 704
0
3 0

Phentolamine mesilate price More Price(31)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich P7561 Phentolamine methanesulfonate salt ≥98% (TLC), powder 65-28-1 100mg $45.2 2024-03-01 Buy
Sigma-Aldrich 1530004 Phentolamine mesylate United States Pharmacopeia (USP) Reference Standard 65-28-1 200mg $436 2024-03-01 Buy
Sigma-Aldrich BP520 Phentolamine mesilate British Pharmacopoeia (BP) Reference Standard 65-28-1 100MG $253 2023-06-20 Buy
TCI Chemical P1985 Phentolamine Mesylate >98.0%(HPLC)(T) 65-28-1 100mg $57 2024-03-01 Buy
TCI Chemical P1985 Phentolamine Mesylate >98.0%(HPLC)(T) 65-28-1 1g $278 2024-03-01 Buy
Product number Packaging Price Buy
P7561 100mg $45.2 Buy
1530004 200mg $436 Buy
BP520 100MG $253 Buy
P1985 100mg $57 Buy
P1985 1g $278 Buy

Phentolamine mesilate Chemical Properties,Uses,Production

Chemical Properties

Phentolamine mesylate is a white, odourless powder which is soluble in water and alcohol.

Uses

Phentolamine mesilate is an adrenergic blocking agent and antihypertensive. It is used in the treatment of hypertension and hypertensive emergencies, pheochromocytoma, vasospasm of raynaud disease and frostbite, clonidine withdrawal syndrome, impotence, and peripheral vascular disease.

brand name

Regitine (Novartis) [Name previously used: Phentolamine Methanesulfonate.].

General Description

Phentolamine Mesylate belongs to the class of alpha adrenergic antagonist drugs. It is used in the treatment of pheochromocytoma-related hypertension, erectile dysfunction and in the diagnosis of pheochromocytoma and norepinephrine-related dermal necrosis.

Biochem/physiol Actions

α-Adrenergic receptor antagonist; peripheral vasodilator.

Clinical Use

Alpha-adrenoceptor blocker:
Hypertensive crisis

Safety Profile

Poison by intravenous and subcutaneous routes. Experimental reproductive effects. When heated to decomposition it emits toxic fumes of SOx and NOx.

Drug interactions

Potentially hazardous interactions with other drugs
Anaesthetics: enhanced hypotensive effect.
Antidepressants: additive hypotensive effect with MAOIs - avoid.
Antihypertensives: enhanced hypotensive effect.
Avanafil, vardenafil, sildenafil and tadalafil: enhanced hypotensive effect - avoid concomitant use.
Diuretics: enhanced hypotensive effect.
Linezolid: additive hypotensive effect.
Moxisylyte: possibly severe postural hypotension.

Metabolism

Phentolamine is extensively metabolised.
Only about 10-13% of an intravenous dose is excreted unchanged in the urine, and the fate of the remainder of the drug is unknown.

storage

Store at +4°C

Mode of action

Phentolamine Mesylate is the mesylate salt of a synthetic imidazoline with alpha-adrenergic antagonist activity. As a competitive alpha-adrenergic antagonist, phentolamine binds to alpha-1 and alpha-2 receptors, resulting in a decrease in peripheral vascular resistance and vasodilatation. This agent also may block 5-hydroxytryptamine (5-HT) receptors and stimulate release of histamine from mast cells.

75-75-2
50-60-2
65-28-1
Synthesis of Phentolamine mesilate from Methanesulfonic acid and Phentolamine

Phentolamine mesilate Preparation Products And Raw materials

Raw materials

Preparation Products

Global( 406)Suppliers
Supplier Tel Email Country ProdList Advantage
HAINAN POLY PHARMCEUTICAL CO. LTD
+86-0571-89385087 +8613616530509 ff@hnpoly.com China 118 58
Taizhou Creating Bio-pharm co., ltd.
+8613586099526 post@creatingbiopharm.com China 217 58
Wuhan Biocar Pharmacy CO.,Ltd.
+86-86-13343427080 +8613343427080 sales@biocarchem.com China 492 58
Shaanxi Dideu Medichem Co. Ltd
+86-29-81148696 +86-15536356810 1022@dideu.com China 3883 58
Shaanxi TNJONE Pharmaceutical Co., Ltd
+86-17396673057 linda@tnjone.com China 1143 58
Hebei Mujin Biotechnology Co.,Ltd
+8613288715578 angelia@hbmojin.com China 750 58
Hebei Junhua Import and Export Co., LTD
+86-18503288844 +86-18503288844 junhua1@hb-junhua.com China 978 58
Shandong Xuhuang New material CoLTD
+86-15095020839 +86-17660422208 China 726 58
Henan Tianfu Chemical Co.,Ltd.
+86-0371-55170693 +86-19937530512 info@tianfuchem.com China 21628 55
career henan chemical co
+86-0371-86658258 +8613203830695 sales@coreychem.com China 29858 58

View Lastest Price from Phentolamine mesilate manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Phentolamine mesilate pictures 2025-04-27 Phentolamine mesilate
65-28-1
US $0.00 / kg 1kg 99% 1000 Hebei Junhua Import and Export Co., LTD
Phentolamine mesilate pictures 2025-04-27 Phentolamine mesilate
65-28-1
US $0.00 / kg 1kg 97% 1000 Hebei Junhua Import and Export Co., LTD
Phentolamine mesilate pictures 2025-04-27 Phentolamine mesilate
65-28-1
US $0.00 / Kg/Bag 1KG 98%-102%; USP 1000KGS WUHAN FORTUNA CHEMICAL CO., LTD
REGITIN REGITIN MESYLATE PHENTOLAMINE MESILATE PHENTOLAMINE METHANESULFONATE PHENTOLAMINE METHANESULFONATE SALT VASOMAX m-(n-(2-imidazolin-2-ylmethyl)-p-toluidino)-phenomonomethanesulfonate(sal phentolaminemethanesulphonate 3-[4,5-Dihydro-1H-imidazol-2-ylmethyl-(4-methylphenyl)-amino]phenol methanesulfonate Phentolamine·methanesulfonic acid Regitine methanesulfonate Phentolamine mesilat Phentolamine Mesylate (200 mg) 2-[N-(m-Hydroxyphenyl)-p-toluidinomethyl]imidazoline Methanesulfonate Phentolamine Methanesulfonate 3-[[(4,5-dihydro-1H-imidazol-2-yl)methyl](4-methylphenyl)amino]-phenol, methanesulfonate (1:1) Phentolamine mesilate for system suitability Phentolamine mesylate, >=99% Phentolamine mesilate(Regitine) regitinemesylate regitinmethanesulphonate 2-[N-(M-HYDROXYPHENYL)-P-TOLUIDINOMETHYL]IMIDAZOLINE, METHANESULFONATE 2-(N-[M-HYDROXYPHENYL]-P-TOLUIDINOMETHYL)IMIDAZOLINE METHANESULFONATE SALT 2-[N-(M-HYDROXYPHENYL)-P-TOLUIDINOMETHYL]IMIDAZOLIN METHANESULFONATE SALT 3-[[(4,5-DIHYDRO-1H-IMIDAZOL-2-YL)METHYL](4-METHYLPHENYL)-AMINO]PHENOL MESYLATE 3-[n-(2-imidazolin-2-ylmethyl)-p-toluidino]phenol methanesulphonate PHENOL, 3-(((4,5-DIHYDRO-1H-IMIDAZOL-2-YL)METHYL)(4-METHYLPHENYL)AMINO)-, MONOMETHANESULFONATE (SALT) PhentolamineMesylateCp2000/Usp26Gmp Phentolaminemethanesulfonate,99% PHENTOLAMINEMESYLATE,USP PHENTOLAMINE METHANESULFONATE (PHENTOLAMINE MESYLATE) amine MesyL PhentoL Phentolamine mesylate, ≥98.0%(TLC) Phentolamine methanesulfonate salt, 98%, a nonselective alpha-adrenergic antagonist Phentolamine mesilate CRS PhentolamineMesylate> Phentolamine for system suitability CRS Phentolaminmesilat Phentolamine mesilate USP/EP/BP Phentolamine Mesylate (1530004) FE 202158 FE202158 PHENTOLAMINE MESYLATE 3-(((4,5-Dihydro-1H-imidazol-2-yl)methyl)(p-tolyl)amino)phenol methanesulfonate (2S,5R,6R)-3,3-dimethyl-7-oxo-6-[(2-phenylacetyl)amino]-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid (benzylpenicillin) Phentolamine me Phentolamine mesylate, alpha-AR antagonist Phentolamine mesylate, 10 mM in DMSO 65-28-1 C17H19N3OCH4O3SC18H23 C17H19N3OCH3SO3H C17H19N3OCH4O3SC18H23N3O4S C17H19N3O.CH4O3S Analytical Standards Alphabetic Analytical Chromatography Product Catalog PEM - POLA Adrenoceptor