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224,000+ research products · Triple ISO certified · COA & SDS available for every product · Same-day shipping on in-stock items

Complement System

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135 products
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  2. POT-4
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    POT-4
    CAS: 934461-40-2 Formula: C72H102N22O18S2 Molecular Weight: 1627.85
    ≥99%
    ◐ .Made to order · 8–12 wks Item #: P648922
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    Pricing & Pack Sizes
    Technical Identifiers
    IUPAC Name
    2-[(4R,7S,10S,13S,19S,22S,25S,28S,31S,34R)-34-[[(2S,3S)-2-acetamido-3-methylpentanoyl]amino]-4-[[(2S,3R)-1-amino-3-hydroxy-1-oxobutan-2-yl]carbamoyl]-show more
    SMILES
    CCC(C)C(C(=O)NC1CSSCC(NC(=O)C(NC(=O)C(NC(=O)C(NC(=O)CNC(=O)C(NC(=O)C(NC(=O)C(NC(=O)C(NC(=O)C(NC1=O)C(C)C)CC2=CN(C3=CC=CC=C32)C)CCC(=O)N)CC(=O)O)CC4=CNshow more
    InChIKey
    WMEMLXDTLKSUOD-OGCOPIPOSA-N
    InChI
    1S/C72H102N22O18S2/c1-9-35(4)58(83-38(7)96)71(112)91-52-32-114-113-31-51(69(110)93-59(37(6)95)60(74)101)90-63(104)45(18-14-22-78-72(75)76)84-66(107)49show more
    Synonyms
    AL-78898A | (Trp(me)4)-ac-compstatin | 4(1MeW) | UNII-T3B2AIZ4BF | L-Threoninamide, N-acetyl-L-isoleucyl-L-cysteinyl-...
  3. Complement C5-IN-1
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    Complement C5-IN-1
    CAS: 2365402-67-9 PubChem CID: 138059708 Formula: C24H32N2O6 Molecular Weight: 444.52
    ≥99%
    ◐ .Made to order · 8–12 wks Item #: C649199
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    Technical Identifiers
    IUPAC Name
    5-methoxy-2-[[(1S)-1-(2-methoxyphenyl)ethyl]carbamoylamino]-4-(4-methylpentoxy)benzoic acid
    SMILES
    CC(C)CCCOC1=C(C=C(C(=C1)NC(=O)NC(C)C2=CC=CC=C2OC)C(=O)O)OC
    InChIKey
    UFAFCKVYKJIJTR-INIZCTEOSA-N
    InChI
    1S/C24H32N2O6/c1-15(2)9-8-12-32-22-14-19(18(23(27)28)13-21(22)31-5)26-24(29)25-16(3)17-10-6-7-11-20(17)30-4/h6-7,10-11,13-16H,8-9,12H2,1-5H3,(H,27,28)show more
  6. AMY-101 TFA
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    AMY-101 TFA
    CAS: 1789738-04-0 PubChem CID: 155904569 Formula: C83H117N23O18S2.xC2HF3O2
    ≥99%
    ◐ .Made to order · 8–12 wks Item #: A650829
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    Pricing & Pack Sizes
    Technical Identifiers
    IUPAC Name
    2-[(4R,7S,10S,13S,19S,22S,25S,28S,31S,34R)-34-[[(2S,3S)-2-[[(2R)-2-amino-3-(4-hydroxyphenyl)propanoyl]amino]-3-methylpentanoyl]amino]-4-[[(2S,3S)-1-amshow more
    SMILES
    CCC(C)C(C(=O)NC1CSSCC(NC(=O)C(NC(=O)C(NC(=O)C(NC(=O)CN(C(=O)C(NC(=O)C(NC(=O)C(NC(=O)C(NC(=O)C(NC1=O)C(C)C)CC2=CN(C3=CC=CC=C32)C)CCC(=O)N)CC(=O)O)CC4=Cshow more
    InChIKey
    GDSMXERXVAAZHM-HNSVDFJCSA-N
    InChI
    1S/C83H117N23O18S2.C2HF3O2/c1-11-43(5)68(103-72(114)53(84)30-46-23-25-50(107)26-24-46)80(122)100-61-39-125-126-40-62(82(124)106(10)69(70(86)112)44(6)1show more
  7. Complement factor D-IN-1
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    Complement factor D-IN-1
    CAS: 1386455-76-0 PubChem CID: 86673884 Formula: C21H19BrN6O3 Molecular Weight: 483.32
    ≥98%
    ◐ .Made to order · 8–12 wks Item #: C651435
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    Pricing & Pack Sizes
    Technical Identifiers
    IUPAC Name
    1-[2-[(1R,3S,5R)-3-[(6-bromopyridin-2-yl)carbamoyl]-2-azabicyclo[3.1.0]hexan-2-yl]-2-oxoethyl]indazole-3-carboxamide
    SMILES
    C1C2C1N(C(C2)C(=O)NC3=NC(=CC=C3)Br)C(=O)CN4C5=CC=CC=C5C(=N4)C(=O)N
    InChIKey
    CWZUTHDJLNZLCM-DFBGVHRSSA-N
    InChI
    1S/C21H19BrN6O3/c22-16-6-3-7-17(24-16)25-21(31)15-9-11-8-14(11)28(15)18(29)10-27-13-5-2-1-4-12(13)19(26-27)20(23)30/h1-7,11,14-15H,8-10H2,(H2,23,30)(Hshow more
  10. ATWLPPR Peptide TFA
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    ATWLPPR Peptide TFA
    Formula: C42H62F3N11O11 Molecular Weight: 954
    ≥99%
    ◐ .Made to order · 8–12 wks Item #: A658822
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    Pricing & Pack Sizes
    Technical Identifiers
    SMILES
    O=C(N[C@@H]([C@H](O)C)C(N[C@@H](CC1=CNC2=CC=CC=C12)C(N[C@@H](CC(C)C)C(N3[C@@H](CCC3)C(N4[C@@H](CCC4)C(N[C@@H](CCCNC(N)=N)C(O)=O)=O)=O)=O)=O)=O)[C@H](Cshow more
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Frequently Asked Questions

What can I find under Complement System?
This listing collects compounds associated with Complement System within our Immunology/Inflammation area — inhibitors, agonists or antagonists, and reference tool compounds. Each entry links to its structure, CAS number, and reported activity so you can confirm the annotation before ordering.
What should I consider when picking a compound for Complement System?
Consider the reported potency of each Complement System compound and the assay behind it, selectivity against closely related targets, cell permeability if you are working in cells, and stability in your buffer. Two chemically distinct compounds giving the same phenotype is much stronger evidence than one.
What quality information is provided for Complement System compounds?
Each Complement System product page lists purity, identity data, molecular formula and weight, and storage conditions, with a lot-specific Certificate of Analysis available. Solubility and handling notes are on the datasheet. All products are supplied for professional research and development use only, and are not for use in humans, animals, diagnostics, or therapy.
Can I search Complement System compounds by activity or structure?
Yes. Filter the Complement System listing by mechanism — inhibitor, agonist, antagonist — and search by target name or gene symbol, CAS number, molecular formula, or SMILES to reach exact structures and close analogs. For bulk quantities or items not listed, contact [email protected].
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