About MedicaPharma
MedicaPharma distributes high-quality active pharmaceutical ingredients (APIs) to hospitals, commercial (compounding) pharmacies, research institutes, and universities worldwide.
Network of over +400 GMP Manufacturers
Let us handle your sourcing / supply activities. For years we have sourced specialty raw pharmaceutical ingredients from niche GMP manufacturers around the world.
Why Choose MedicaPharma
We are committed to supplying high-quality GMP products with logistics accoring to GDP regulations
Product Description
Mechanism of action
Apamin is a highly selective neurotoxic peptide derived from bee venom that blocks small‑conductance calcium‑activated potassium (SK) channels. By inhibiting SK2 and SK3 channels in neurons, apamin increases neuronal excitability and modulates afterhyperpolarisation, playing an important role in studies of synaptic plasticity and central nervous system rhythmogenesis.
Benefits and advantages
Essential in neurophysiology for dissecting SK‑channel functions, central pattern generator activity, learning and memory models, and channelopathy research. Its unique selectivity makes it one of the most important tools for potassium‑channel pharmacology.
Side effects and risks
Potent neurotoxin; exposure can cause severe neuroexcitation, paralysis, anaphylaxis, and cardiovascular instability. Requires full toxin‑grade handling procedures.
Datasheet
| Molecular Formula | C79H131N31O24S4 |
|---|---|
| Molecular Weight | 2027.4 g/mol |
| CAS Number | 24345-16-2 |
| Storage Condition | Store in a cool, dry place. Keep container tightly closed. Protect from moisture and light. |
| Solubility | Solubility depends on solvent and conditions (e.g., pH). Please contact us for solvent-specific guidance. |
| Purity | Purity information is available upon request (COA). |
| Synonym | Apamin; 24345-16-2; DTXSID70897227; X644P85KUR; RefChem:113290 |
| IUPAC/Chemical Name | 3-[(1R,4S,7S,13S,16S,19S,22S,25S,28R,31S,34S,37S,40R,47S,50R)-50-amino-40-[[(2S)-5-amino-1-[[(2S)-5-amino-1-[[(2S)-1-amino-3-(1H-imidazol-4-yl)-1-oxopropan-2-yl]amino]-1,5-dioxopentan-2-yl]amino]-1,5-dioxopentan-2-yl]carbamoyl]-4-(4-aminobutyl)-47-(2-amino-2-oxoethyl)-34,37-bis(3-carbamimidamidopropyl)-19-[(1R)-1-hydroxyethyl]-7,22,31-trimethyl-25-(2-methylpropyl)-2,5,8,14,17,20,23,26,29,32,35,38,46,49-tetradecaoxo-42,43,52,53-tetrathia-3,6,9,15,18,21,24,27,30,33,36,39,45,48-tetradecazatricyclo[26.16.10.09,13]tetrapentacontan-16-yl]propanoic acid |
| InChl Key | YVIIHEKJCKCXOB-STYWVVQQSA-N |
| InChl Code | InChI=1S/C79H131N31O24S4/c1-35(2)26-49-70(127)107-51-31-136-135-30-41(81)63(120)105-50(28-57(84)114)71(128)108-53(73(130)99-42(12-7-8-22-80)64(121)96-38(5)77(134)110-25-11-15-54(110)75(132)102-47(18-21-58(115)116)69(126)109-59(39(6)111)76(133)95-37(4)62(119)104-49)33-138-137-32-52(106-66(123)44(14-10-24-92-79(88)89)98-65(122)43(13-9-23-91-78(86)87)97-61(118)36(3)94-72(51)129)74(131)101-45(16-19-55(82)112)67(124)100-46(17-20-56(83)113)68(125)103-48(60(85)117)27-40-29-90-34-93-40/h29,34-39,41-54,59,111H,7-28,30-33,80-81H2,1-6H3,(H2,82,112)(H2,83,113)(H2,84,114)(H2,85,117)(H,90,93)(H,94,129)(H,95,133)(H,96,121)(H,97,118)(H,98,122)(H,99,130)(H,100,124)(H,101,131)(H,102,132)(H,103,125)(H,104,119)(H,105,120)(H,106,123)(H,107,127)(H,108,128)(H,109,126)(H,115,116)(H4,86,87,91)(H4,88,89,92)/t36-,37-,38-,39+,41-,42-,43-,44-,45-,46-,47-,48-,49-,50-,51-,52-,53-,54-,59-/m0/s1 |
| References |
3D Conformer.
(Click, turn or enlarge)
Download our GMP API Product List.
MedicaPharma is an EU-based supplier of GMP-certified APIs that serves leading healthcare institutions and research organizations.
Click here to download our full API product list.
