AVAILABLE TO ORDER
GRADE & PURITY ≥97%
Synonyms
P9B protein, Hyalophora cecropia | cecropin B protein, Insecta | DTXSID90230334 | P9B protein, Insecta | Cecropin B | P9B Protein | EX-A7391 | Cecropin B protein, Hyalophora cecropia | Cecropin B protein,Insecta
Storage
Protected from light,Store at -20°C
Shipped In
Ice chest + Ice pads
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
1mg
C118791-1mg
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$49.90
5mg
C118791-5mg
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$139.90
25mg
C118791-25mg
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$419.90
100mg
C118791-100mg
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$982.90
Enter a quantity for the sizes you want to add.

Specifications

Synonyms
P9B protein, Hyalophora cecropia | cecropin B protein, Insecta | DTXSID90230334 | P9B protein, Insecta | Cecropin B | P9B Protein | EX-A7391 | Cecropin B protein, Hyalophora cecropia | Cecropin B protein, Insecta
Specifications & Purity
≥97%
Biochemical and Physiological Mechanisms
Antibacterial peptide. Lyse bacterial cell membranes, inhibit proline uptake and cause leaky membranes. Have a broad spectrum of activity.
Storage
Protected from light, Store at -20°C
Shipped In
Ice chest + Ice pads
This product requires cold chain shipping. Ground and other economy services are not available.
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.
Purity
≥97%
Names and Identifiers
Canonical SmilesCCC(C)C(C(=O)NC(C(C)C)C(=O)NC(CCCCN)C(=O)NC(C)C(=O)NCC(=O)N1CCCC1C(=O)NC(C)C(=O)NC(C(C)CC)C(=O)NC(C)C(=O)NC(C(C)C)C(=O)NC(CC(C)C)C(=O)NCC(=O)NC(CCC(=O)O)C(=O)NC(C)C(=O)NC(CCCCN)C(=O)NC(C)C(=O)NC(CC(C)C)C(=O)N)NC(=O)CNC(=O)C(CC(=O)N)NC(=O)C(CCCNC(=N)N)NC(=O)C(C(C)CC)NC(=O)C(CC(=O)N)NC(=O)C(CCCNC(=N)N)NC(=O)CNC(=O)C(CCSC)NC(=O)C(CCCCN)NC(=O)C(CCC(=O)O)NC(=O)C(C(C)CC)NC(=O)C(CCCCN)NC(=O)C(CCCCN)NC(=O)C(CC2=CC=CC=C2)NC(=O)C(C(C)C)NC(=O)C(CCCCN)NC(=O)C(CC3=CNC4=CC=CC=C43)NC(=O)C(CCCCN)N
IUPAC Name(4S)-4-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S,3S)-2-[[(2S)-2-[[(2S)-1-[2-[[(2S)-2-[[(2S)-6-amino-2-[[(2S)-2-[[(2S,3S)-2-[[2-[[(2S)-4-amino-2-[[(2S)-2-[[(2S,3S)-2-[[(2S)-4-amino-2-[[(2S)-2-[[2-[[(2S)-2-[[(2S)-6-amino-2-[[(2S)-2-[[(2S,3S)-2-[[(2S)-6-amino-2-[[(2S)-6-amino-2-[[(2S)-2-[[(2S)-2-[[(2S)-6-amino-2-[[(2S)-2-[[(2S)-2,6-diaminohexanoyl]amino]-3-(1H-indol-3-yl)propanoyl]amino]hexanoyl]amino]-3-methylbutanoyl]amino]-3-phenylpropanoyl]amino]hexanoyl]amino]hexanoyl]amino]-3-methylpentanoyl]amino]-4-carboxybutanoyl]amino]hexanoyl]amino]-4-methylsulfanylbutanoyl]amino]acetyl]amino]-5-carbamimidamidopentanoyl]amino]-4-oxobutanoyl]amino]-3-methylpentanoyl]amino]-5-carbamimidamidopentanoyl]amino]-4-oxobutanoyl]amino]acetyl]amino]-3-methylpentanoyl]amino]-3-methylbutanoyl]amino]hexanoyl]amino]propanoyl]amino]acetyl]pyrrolidine-2-carbonyl]amino]propanoyl]amino]-3-methylpentanoyl]amino]propanoyl]amino]-3-methylbutanoyl]amino]-4-methylpentanoyl]amino]acetyl]amino]-5-[[(2S)-1-[[(2S)-6-amino-1-[[(2S)-1-[[(2S)-1-amino-4-methyl-1-oxopentan-2-yl]amino]-1-oxopropan-2-yl]amino]-1-oxohexan-2-yl]amino]-1-oxopropan-2-yl]amino]-5-oxopentanoic acid
InChIKeyYIQHNFUJWYYSEC-MQAAYMCRSA-N
INCHI1S/C176H302N52O41S/c1-25-97(15)140(174(269)224-139(96(13)14)168(263)212-113(57-36-43-72-179)155(250)199-101(19)145(240)198-91-134(234)228-79-50-64-128(228)167(262)202-104(22)149(244)225-141(98(16)26-2)171(266)203-105(23)148(243)222-137(94(9)10)169(264)219-123(82-93(7)8)152(247)196-89-132(232)205-119(65-67-135(235)236)156(251)201-102(20)146(241)206-112(56-35-42-71-178)154(249)200-103(21)147(242)215-122(144(187)239)81-92(5)6)221-133(233)90-197-153(248)126(85-129(185)229)217-160(255)118(63-49-78-193-176(190)191)213-172(267)143(100(18)28-4)227-166(261)127(86-130(186)230)218-157(252)111(62-48-77-192-175(188)189)204-131(231)88-195-151(246)121(69-80-270-24)211-159(254)114(58-37-44-73-180)207-161(256)120(66-68-136(237)238)214-173(268)142(99(17)27-3)226-163(258)117(61-40-47-76-183)208-158(253)115(59-38-45-74-181)209-164(259)124(83-106-51-30-29-31-52-106)220-170(265)138(95(11)12)223-162(257)116(60-39-46-75-182)210-165(260)125(216-150(245)109(184)54-34-41-70-177)84-107-87-194-110-55-33-32-53-108(107)110/h29-33,51-53,55,87,92-105,109,111-128,137-143,194H,25-28,34-50,54,56-86,88-91,177-184H2,1-24H3,(H2,185,229)(H2,186,230)(H2,187,239)(H,195,246)(H,196,247)(H,197,248)(H,198,240)(H,199,250)(H,200,249)(H,201,251)(H,202,262)(H,203,266)(H,204,231)(H,205,232)(H,206,241)(H,207,256)(H,208,253)(H,209,259)(H,210,260)(H,211,254)(H,212,263)(H,213,267)(H,214,268)(H,215,242)(H,216,245)(H,217,255)(H,218,252)(H,219,264)(H,220,265)(H,221,233)(H,222,243)(H,223,257)(H,224,269)(H,225,244)(H,226,258)(H,227,261)(H,235,236)(H,237,238)(H4,188,189,192)(H4,190,191,193)/t97-,98-,99-,100-,101-,102-,103-,104-,105-,109-,111-,112-,113-,114-,115-,116-,117-,118-,119-,120-,121-,122-,123-,124-,125-,126-,127-,128-,137-,138-,139-,140-,141-,142-,143-/m0/s1
Molecular Weight 3834.67 (free)

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

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✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

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📊 Datasheet

Quick-reference summary of product specifications and applications.

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🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

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Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganic Polymers
ClassPolypeptides
SubclassNot available
Intermediate Tree Nodes Not available
Direct ParentPolypeptides
Alternative Parents Peptides  Arginine and derivatives  Phenylalanine and derivatives  Glutamic acid and derivatives  Asparagine and derivatives  Isoleucine and derivatives  Leucine and derivatives  Methionine and derivatives  Valine and derivatives  Proline and derivatives  N-acyl-alpha amino acids and derivatives  Tryptamines and derivatives  Alpha amino acid amides  Alanine and derivatives  Amphetamines and derivatives  3-alkylindoles  Pyrrolidinecarboxamides  N-acylpyrrolidines  N-acyl amines  Substituted pyrroles  Dicarboxylic acids and derivatives  Tertiary carboxylic acid amides  Heteroaromatic compounds  Amino acids  Primary carboxylic acid amides  Guanidines  Secondary carboxylic acid amides  Sulfenyl compounds  Dialkylthioethers  Carboxylic acids  Azacyclic compounds  Carboximidamides  Organic oxides  Monoalkylamines  Imines  Carbonyl compounds  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteropolycyclic compounds
Substituents Polypeptide - Alpha peptide - Arginine or derivatives - Phenylalanine or derivatives - Glutamic acid or derivatives - Methionine or derivatives - Asparagine or derivatives - Isoleucine or derivatives - Leucine or derivatives - Proline or derivatives - Valine or derivatives - N-acyl-alpha amino acid or derivatives - Alpha-amino acid amide - Triptan - Alanine or derivatives - Alpha-amino acid or derivatives - Amphetamine or derivatives - N-substituted-alpha-amino acid - 3-alkylindole - Indole - Indole or derivatives - Pyrrolidine carboxylic acid or derivatives - Pyrrolidine-2-carboxamide - N-acylpyrrolidine - Fatty acyl - N-acyl-amine - Fatty amide - Dicarboxylic acid or derivatives - Substituted pyrrole - Benzenoid - Monocyclic benzene moiety - Heteroaromatic compound - Tertiary carboxylic acid amide - Pyrrole - Pyrrolidine - Secondary carboxylic acid amide - Primary carboxylic acid amide - Amino acid or derivatives - Amino acid - Carboxamide group - Guanidine - Carboxylic acid derivative - Carboxylic acid - Azacycle - Thioether - Organoheterocyclic compound - Dialkylthioether - Sulfenyl compound - Carboximidamide - Organic nitrogen compound - Primary amine - Amine - Organonitrogen compound - Carbonyl group - Organic oxide - Organic oxygen compound - Imine - Organosulfur compound - Organooxygen compound - Primary aliphatic amine - Hydrocarbon derivative - Aromatic heteropolycyclic compound
DescriptionThis 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
Associated Targets(non-human)
Pseudomonas fluorescens (1630 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Vibrio vulnificus (80 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Mechanisms of Action
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.

4 results found

Lot NumberCertificate TypeDateItem
C2604827Certificate of AnalysisFeb 26, 2026 C118791
C2604828Certificate of AnalysisFeb 26, 2026 C118791
C2604829Certificate of AnalysisFeb 26, 2026 C118791
C2604830Certificate of AnalysisFeb 26, 2026 C118791
Chemical and Physical Properties
SolubilityH2O: 20 mg/mL (5.22 mM), Sonication and heating are recommended.
SensitivityMoisture sensitive;Light sensitive
Molecular Weight3835.000 g/mol
XLogP3-8.400
Hydrogen Bond Donor Count53
Hydrogen Bond Acceptor Count52
Rotatable Bond Count138
Exact Mass3833.29 Da
Monoisotopic Mass3832.29 Da
Topological Polar Surface Area1560.000 Ų
Heavy Atom Count270
Formal Charge0
Complexity8830.000
Isotope Atom Count0
Defined Atom Stereocenter Count35
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Documents & Articles
References
1. Yize Lin, Yan Tan, Rong Deng, Li Gong, Xiaoshan Feng, Zhongqi Cai, Yanxian He, Longbao Feng, Biao Cheng, Yi Chen.  (2024)  Antibacterial Antimicrobial Peptide Grafted HA/SF/Alg Wound Dressing Containing AIEgens for Infected Wound Treating.  ACS Omega,      [PMID:38854545] [10.1021/acsomega.4c00649]
Solution Calculators
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