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    Tozuleristide

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    2D Structure
    Also known as: Tozuleristide [inn], Tozuleristide [usan], Tozuleristide [usan:inn], Unii-835uh424tu, Blz-100, 835uh424tu
    Molecular Formula
    C203H296N58O52S12
    Molecular Weight
    4766  g/mol
    InChI Key
    LWXYOERUKGQNKQ-IQDTYCCDSA-N
    Tozuleristide is a tumor targeting imaging agent composed of the tumor-specific peptide chlorotoxin (CTX), a 36-amino acid neurotoxin found in the venom of the Leiurus quinquestriatus scorpion, linked to the fluorescent dye indocyanine green (ICG), with potential tumor imaging activity using a near-infrared (NIR) imaging system. Upon intravenous administration of BLZ-100, the CTX moiety of BLZ-100 specifically binds to and is internalized by cancer cells of neuroectodermal origin. Using a NIR imaging system, the ICG, which emits light in the NIR range, permits the intraoperative visualization of tumor cells. This leads to the clear distinction of healthy tissues from tumor cells, and facilitates the surgical removal of tumor tissue while sparing normal, healthy cells.
    1 2D Structure

    2D Structure

    2 Identification
    2.1 Computed Descriptors
    2.1.1 IUPAC Name
    4-[2-[(1E,3E,5E,7Z)-7-[3-[6-[4-[(1R,4R,5aR,8aS,9R,12S,17aS,18S,20aS,21R,24S,27S,30S,33S,36S,39S,42S,45S,48S,51S,54R,59R,62S,65S,74S,77R,80S,86S,92S)-9-[[(2S)-2-amino-4-methylsulfanylbutanoyl]amino]-39,62-bis(3-amino-3-oxopropyl)-24-benzyl-5a-[[(1S)-4-carbamimidamido-1-carboxybutyl]carbamoyl]-48,51,86,92-tetrakis(3-carbamimidamidopropyl)-17a,20a,33-tris(carboxymethyl)-27,30-bis[(1R)-1-hydroxyethyl]-74-[(4-hydroxyphenyl)methyl]-36-(1H-imidazol-4-ylmethyl)-45-methyl-8a-(2-methylpropyl)-12,42-bis(2-methylsulfanylethyl)-a,3,7a,10,10a,13,15a,18a,19,21a,22,25,28,31,34,37,40,43,46,49,52,61,64,70,73,76,79,82,85,88,91,94,97-tritriacontaoxo-2a,3a,6,7,12a,13a,56,57-octathia-2,6a,9a,11,14,16a,19a,20,22a,23,26,29,32,35,38,41,44,47,50,53,60,63,69,72,75,78,81,84,87,90,93,96,99-tritriacontazahexacyclo[57.41.10.84,54.421,77.014,18.065,69]docosahectan-80-yl]butylamino]-6-oxohexyl]-1,1-dimethylbenzo[e]indol-2-ylidene]hepta-1,3,5-trienyl]-1,1-dimethylbenzo[e]indol-3-ium-3-yl]butane-1-sulfonate
    2.1.2 InChI
    InChI=1S/C203H296N58O52S12/c1-107(2)85-130-178(291)253-139(185(298)240-129(196(309)310)50-36-76-223-201(215)216)100-319-317-98-137-171(284)225-93-154(268)224-94-155(269)231-120(46-32-72-219-197(207)208)168(281)226-95-156(270)232-121(47-33-73-220-198(209)210)169(282)227-96-157(271)233-122(45-27-28-71-218-153(267)55-22-17-29-77-258-145-64-58-113-41-23-25-43-117(113)162(145)202(6,7)149(258)53-20-14-13-15-21-54-150-203(8,9)163-118-44-26-24-42-114(118)59-65-146(163)259(150)78-30-31-84-325(311,312)313)173(286)250-141-102-322-324-105-144-189(302)243-132(86-111-39-18-16-19-40-111)183(296)256-165(110(5)263)194(307)257-164(109(4)262)193(306)247-136(91-161(277)278)181(294)244-133(88-115-92-217-106-229-115)179(292)236-125(62-66-151(205)265)176(289)237-127(69-82-315-11)172(285)230-108(3)166(279)234-123(48-34-74-221-199(211)212)174(287)235-124(49-35-75-222-200(213)214)175(288)251-142(103-321-320-101-140(186(299)241-130)252-177(290)126(63-67-152(206)266)238-191(304)147-51-37-79-260(147)158(272)97-228-170(283)131(242-187(141)300)87-112-56-60-116(264)61-57-112)188(301)246-134(89-159(273)274)180(293)245-135(90-160(275)276)182(295)254-143(190(303)249-137)104-323-318-99-138(248-167(280)119(204)68-81-314-10)184(297)239-128(70-83-316-12)195(308)261-80-38-52-148(261)192(305)255-144/h13-16,18-21,23-26,39-44,53-54,56-61,64-65,92,106-110,119-144,147-148,164-165,262-263H,17,22,27-38,45-52,55,62-63,66-91,93-105,204H2,1-12H3,(H64-,205,206,207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255,256,257,264,265,266,267,268,269,270,271,273,274,275,276,277,278,279,280,281,282,283,284,285,286,287,288,289,290,291,292,293,294,295,296,297,298,299,300,301,302,303,304,305,306,307,309,310,311,312,313)/t108-,109+,110+,119-,120-,121-,122-,123-,124-,125-,126-,127-,128-,129-,130-,131-,132-,133-,134-,135-,136-,137-,138-,139-,140-,141-,142-,143-,144-,147-,148-,164-,165-/m0/s1
    2.1.3 InChI Key
    LWXYOERUKGQNKQ-IQDTYCCDSA-N
    2.1.4 Canonical SMILES
    CC1C(=O)NC(C(=O)NC(C(=O)NC2CSSCC3C(=O)NC(C(=O)NC(CSSCC4C(=O)NCC(=O)NCC(=O)NC(C(=O)NCC(=O)NC(C(=O)NCC(=O)NC(C(=O)NC(CSSCC(C(=O)NC(C(=O)NC(C(=O)NC(C(=O)NC(C(=O)NC(C(=O)NC(C(=O)NC(C(=O)N1)CCSC)CCC(=O)N)CC5=CNC=N5)CC(=O)O)C(C)O)C(C)O)CC6=CC=CC=C6)NC(=O)C7CCCN7C(=O)C(NC(=O)C(CSSCC(C(=O)N4)NC(=O)C(NC(=O)C(NC2=O)CC(=O)O)CC(=O)O)NC(=O)C(CCSC)N)CCSC)C(=O)NC(C(=O)NCC(=O)N8CCCC8C(=O)NC(C(=O)N3)CCC(=O)N)CC9=CC=C(C=C9)O)CCCCNC(=O)CCCCCN1C2=C(C3=CC=CC=C3C=C2)C(C1=CC=CC=CC=CC1=[N+](C2=C(C1(C)C)C1=CC=CC=C1C=C2)CCCCS(=O)(=O)[O-])(C)C)CCCNC(=N)N)CCCNC(=N)N)C(=O)NC(CCCNC(=N)N)C(=O)O)CC(C)C)CCCNC(=N)N)CCCNC(=N)N
    2.1.5 Isomeric SMILES
    C[C@H]1C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H]2CSSC[C@H]3C(=O)N[C@H](C(=O)N[C@@H](CSSC[C@H]4C(=O)NCC(=O)NCC(=O)N[C@H](C(=O)NCC(=O)N[C@H](C(=O)NCC(=O)N[C@H](C(=O)N[C@@H](CSSC[C@@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N1)CCSC)CCC(=O)N)CC5=CNC=N5)CC(=O)O)[C@@H](C)O)[C@@H](C)O)CC6=CC=CC=C6)NC(=O)[C@@H]7CCCN7C(=O)[C@@H](NC(=O)[C@H](CSSC[C@@H](C(=O)N4)NC(=O)[C@@H](NC(=O)[C@@H](NC2=O)CC(=O)O)CC(=O)O)NC(=O)[C@H](CCSC)N)CCSC)C(=O)N[C@H](C(=O)NCC(=O)N8CCC[C@H]8C(=O)N[C@H](C(=O)N3)CCC(=O)N)CC9=CC=C(C=C9)O)CCCCNC(=O)CCCCCN\1C2=C(C3=CC=CC=C3C=C2)C(/C1=C/C=C/C=C/C=C/C1=[N+](C2=C(C1(C)C)C1=CC=CC=C1C=C2)CCCCS(=O)(=O)[O-])(C)C)CCCNC(=N)N)CCCNC(=N)N)C(=O)N[C@@H](CCCNC(=N)N)C(=O)O)CC(C)C)CCCNC(=N)N)CCCNC(=N)N
    2.2 Synonyms
    2.2.1 MeSH Synonyms

    1. Blz-100

    2. Tumor Paint Blz-100

    2.2.2 Depositor-Supplied Synonyms

    1. Tozuleristide [inn]

    2. Tozuleristide [usan]

    3. Tozuleristide [usan:inn]

    4. Unii-835uh424tu

    5. Blz-100

    6. 835uh424tu

    7. 1673565-40-6

    2.3 Create Date
    2016-08-16
    3 Chemical and Physical Properties
    Molecular Weight 4766 g/mol
    Molecular Formula C203H296N58O52S12
    XLogP3-8
    Hydrogen Bond Donor Count60
    Hydrogen Bond Acceptor Count71
    Rotatable Bond Count80
    Exact Mass4763.9016256 g/mol
    Monoisotopic Mass4761.8949160 g/mol
    Topological Polar Surface Area2040 Ų
    Heavy Atom Count325
    Formal Charge0
    Complexity11900
    Isotope Atom Count0
    Defined Atom Stereocenter Count33
    Undefined Atom Stereocenter Count0
    Defined Bond Stereocenter Count4
    Undefined Bond Stereocenter Count0
    Covalently Bonded Unit Count1
    4 Pharmacology and Biochemistry
    4.1 MeSH Pharmacological Classification

    Contrast Media

    Substances used to allow enhanced visualization of tissues. (See all compounds classified as Contrast Media.)