Basic Description

Synonyms	L-Histidinamide, L-cysteinyl-L-asparaginyl-L-cysteinyl-L-lysyl-L-alanyl-L-prolyl-L-alpha-glutamyl-L-threonyl-L-alanyl-L-leucyl-L-cysteinyl-L-alanyl-L-arginyl-L-arginyl-L-cysteinyl-L-glutaminyl-L-glutaminyl-, cyclic (1-11)(3-15)-bis(disulfide) \| C79H131N31
Specifications & Purity	Moligand™, ≥97%(HPLC)
Biochemical and Physiological Mechanisms	The only polypeptide neurotoxin that is known to pass the blood-brain barrier. Blocks ATP-type Ca+2-activated K+ channels.Peptide neurotoxin that naturally occurs in Apis mellifera bee venom. Blocks small conductance Ca 2+ activated K + channels (SK). Sel
Storage Temp	Store at -20°C
Shipped In	Ice chest + Ice pads This product requires cold chain shipping. Ground and other economy services are not available.
Grade	Moligand™
Note	Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one week. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour. Need more advice on solubility, usage and handling? Please visit our frequently asked questions (FAQ) page for more details.
Product Description	Amino Acid Sequence Cys-Asn-Cys-Lys-Ala-Pro-G?lu-Thr-Ala-Leu-Cys-Ala-Ar?g-Arg-Cys-Gln-Gln-His-NH2? [Disulfide Bridges: 1-11, 3-15]

Taxonomic Classification

Taxonomy Tree

Kingdom Organic compounds
- Superclass Organic Polymers
  - Class Polypeptides

Kingdom	Organic compounds
Superclass	Organic Polymers
Class	Polypeptides
Subclass	Not available
Intermediate Tree Nodes	Not available
Direct Parent	Polypeptides
Alternative Parents	Cyclic peptides Histidine and derivatives Glutamine and derivatives N-acyl-alpha amino acids and derivatives Alpha amino acid amides N-acyl amines Tertiary carboxylic acid amides Pyrrolidines Heteroaromatic compounds Imidazoles Secondary carboxylic acid amides Amino acids Secondary alcohols Primary carboxylic acid amides Guanidines Organic disulfides Lactams Carboximidamides Carboxylic acids Monocarboxylic acids and derivatives Azacyclic compounds Carbonyl compounds Organic oxides Hydrocarbon derivatives Imines Monoalkylamines
Molecular Framework	Aromatic heteropolycyclic compounds
Substituents	Polypeptide - Cyclic alpha peptide - Histidine or derivatives - Glutamine or derivatives - N-acyl-alpha amino acid or derivatives - Alpha-amino acid amide - N-substituted-alpha-amino acid - Alpha-amino acid or derivatives - N-acyl-amine - Fatty amide - Fatty acyl - Heteroaromatic compound - Tertiary carboxylic acid amide - Pyrrolidine - Imidazole - Azole - Amino acid or derivatives - Secondary carboxylic acid amide - Secondary alcohol - Primary carboxylic acid amide - Lactam - Guanidine - Organic disulfide - Carboxamide group - Amino acid - Azacycle - Organoheterocyclic compound - Carboxylic acid derivative - Carboxylic acid - Carboximidamide - Monocarboxylic acid or derivatives - Amine - Organic oxide - Organic oxygen compound - Organic nitrogen compound - Carbonyl group - Alcohol - Primary amine - Organooxygen compound - Organonitrogen compound - Imine - Hydrocarbon derivative - Primary aliphatic amine - Aromatic heteropolycyclic compound
Description	This compound belongs to the class of organic compounds known as polypeptides. These are peptides containing ten or more amino acid residues.
External Descriptors	Not available
1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61. DOI: 10.1186/s13321-016-0174-y

Associated Targets(Human)

KCNN1 Tchem Small conductance calcium-activated potassium channel protein 1 (0 Activities)

Discover Target: KCNN1

Activity Type	Activity Value -log(M)	Mechanism of Action	Activity Reference	Publications (PubMed IDs)

KCNN3 Tchem Small conductance calcium-activated potassium channel protein 3 (0 Activities)

Discover Target: KCNN3

Activity Type	Activity Value -log(M)	Mechanism of Action	Activity Reference	Publications (PubMed IDs)

KCNN2 Tchem Small conductance calcium-activated potassium channel protein 2 (0 Activities)

Discover Target: KCNN2

Activity Type	Activity Value -log(M)	Mechanism of Action	Activity Reference	Publications (PubMed IDs)

Names and Identifiers

Pubchem Sid	504768062
Pubchem Sid Url	https://pubchem.ncbi.nlm.nih.gov/substance/504768062
IUPAC 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
INCHI	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
InChIKey	YVIIHEKJCKCXOB-STYWVVQQSA-N
Smiles	CC1C(=O)NC(C(=O)NC(C(=O)NC(CSSCC2C(=O)NC(C(=O)NC(C(=O)N3CCCC3C(=O)NC(C(=O)NC(C(=O)NC(C(=O)NC(C(=O)NC(CSSCC(C(=O)NC(C(=O)N2)CC(=O)N)N)C(=O)N1)CC(C)C)C)C(C)O)CCC(=O)O)C)CCCCN)C(=O)NC(CCC(=O)N)C(=O)NC(CCC(=O)N)C(=O)NC(CC4=CNC=N4)C(=O)N)CCCNC(=N)N)CCCNC(=N)N
Isomeric SMILES	C[C@H]1C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@@H](CSSC[C@H]2C(=O)N[C@H](C(=O)N[C@H](C(=O)N3CCC[C@H]3C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@@H](CSSC[C@@H](C(=O)N[C@H](C(=O)N2)CC(=O)N)N)C(=O)N1)CC(C)C)C)[C@@H](C)O)CCC(=O)O)C)CCCCN)C(=O)N[C@@H](CCC(=O)N)C(=O)N[C@@H](CCC(=O)N)C(=O)N[C@@H](CC4=CNC=N4)C(=O)N)CCCNC(=N)N)CCCNC(=N)N
WGK Germany	3
PubChem CID	16133797
Molecular Weight	2027.34(free base）

Certificates（CoA,COO,BSE/TSE and Analysis Chart)

C of A & Other Certificates(BSE/TSE, COO):

Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

3 results found

Lot Number	Certificate Type	Date	Item
J2215407	Certificate of Analysis	Sep 16, 2022	A118764
J2215421	Certificate of Analysis	Sep 16, 2022	A118764
C1801058	Certificate of Analysis	Jan 19, 2022	A118764

Chemical and Physical Properties

Molecular Weight	2027.400 g/mol
XLogP3	-13.400
Hydrogen Bond Donor Count	31
Hydrogen Bond Acceptor Count	33
Rotatable Bond Count	37
Exact Mass	2025.89 Da
Monoisotopic Mass	2025.89 Da
Topological Polar Surface Area	1020.000 Å²
Heavy Atom Count	138
Formal Charge	0
Complexity	4320.000
Isotope Atom Count	0
Defined Atom Stereocenter Count	19
Undefined Atom Stereocenter Count	0
Defined Bond Stereocenter Count	0
Undefined Bond Stereocenter Count	0
The total count of all stereochemical bonds	0
Covalently-Bonded Unit Count	1

Solution Calculators

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SKU	Size	Availability	Price
A118764-1mg	1mg	3	$302.90
A118764-500μg	500μg	Available within 4-8 weeks(?) Items will be manufactured post-order and can take 4-8 weeks. Thank you for your patience!	$196.90
A118764-5mg	5mg	1	$1,359.90

Apamin - ≥97% (HPLC), high purity , CAS No.24345-16-2（free base)