Molekula
Phentolamine methanesulfonate (Phentolamine mesylate)
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Phentolamine methanesulfonate is a reversible alpha-adrenergic receptor antagonist used in the treatment of pheochromocytoma and as a vasodilator. It is available as a white to off-white crystalline powder. CAS: 65-28-1, Molecular Formula: C17H19N3O · CH4O3S, Molecular Weight: 377.46 g/mol. Store at ambient temperature. Signal word: Warning. Molekula supplies Phentolamine methanesulfonate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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100 mg — $97.60 per pack
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1 g — $191.20 per pack
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White powder |
| Loss on Drying | ≤0.5% |
| Storage Temperature | +20 ℃ |
| Specification | Conforms to USP 32 |
| Assay | 98.0%~102.0% |
| Residue on Ignition | ≤0.1% |
| Individual Purity: | ≤0.5% |
| Sulphates (SO4)(2-) | ≤0.2% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 24470424 |
| CAS Number | 65-28-1 |
| IUPAC Name | 3-[N-(4,5-dihydro-1H-imidazol-2-ylmethyl)-4-methylanilino]phenol;methanesulfonic acid |
| EC Number | 200-604-6 |
| Molecular Formula | C17H19N3O · CH4O3S |
| Molecular Weight | 377.46 |
| Exact Mass | 377.1409 |
| SMILES | CC1=CC=C(C=C1)N(CC2=NCCN2)C3=CC(=CC=C3)O.CS(=O)(=O)O |
| InChIKey | OGIYDFVHFQEFKQ-UHFFFAOYSA-N |
| 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) |
| PubChem CID | 91430 |
| REACH Code | Y110 |
| HTS Code | 2933299000 |
| Tariff Code | 2933299090 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H302 + H312 + H332 Harmful if swallowed, in contact with skin or if inhaled
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is Phentolamine methanesulfonate used for?
It is primarily used in the treatment of pheochromocytoma and as a vasodilator in certain medical conditions. It is also used in research settings to study alpha-adrenergic receptors.
What is the chemical formula and molecular weight of Phentolamine methanesulfonate?
The formula is C17H19N3O · CH4O3S with a molecular weight of 377.46 g/mol.
How should Phentolamine methanesulfonate be stored?
It should be stored at ambient temperature, protected from light and moisture.
What grade is available for Phentolamine methanesulfonate?
We offer Phentolamine methanesulfonate in research grade for laboratory use.
Can Molekula supply Phentolamine methanesulfonate in bulk?
Yes, we can supply Phentolamine methanesulfonate in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with my order of Phentolamine methanesulfonate?
Each order includes a Certificate of Analysis (CoA) and safety data sheet (SDS) with the shipment.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.