A reactive drug-linker molecule containing SN-38
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CL2A-SN-38 (dichloroacetic acid salt)

Item No. 33941

Product Insert (PDF)Safety Data Sheet (SDS) (PDF)
Technical Information
Formal Name
carbonic acid, [4-[[(2S)-2-(4-aminobutyl)-35-[4-[[[[4-[(2,5-dihydro-2,5-dioxo-1H-pyrrol-1-yl)methyl]cyclohexyl]carbonyl]amino]methyl]-1H-1,2,3-triazol-1-yl]-1,4,8-trioxo-6,12,15,18,21,24,27,30,33-nonaoxa-3,9-diazapentatriacont-1-yl]amino]phenyl]methyl (4S)-4,11-diethyl-3,4,12,14-tetrahydro-9-hydroxy-3,14-dioxo-1H-pyrano[3′,4′:6,7]indolizino[1,2-b]quinolin-4-yl ester, dichloroacetic acid
Molecular Formula
C73H97N11O22 • XC2H2Cl2O2
Formula Weight
1480.6
Purity
≥90%
Formulation
A solid
Solubility(Learn about Variance in Solubility)
Methanol: 10 mg/ml
SMILES
O=C1N2C(C(C(C2)=C(C3=C4)CC)=NC3=CC=C4O)=CC5=C1COC([C@@]5(CC)OC(OCC6=CC=C(C=C6)NC([C@H](CCCCN)NC(COCC(NCCOCCOCCOCCOCCOCCOCCOCCOCCN7C=C(N=N7)CNC(C8CCC(CC8)CN9C(C=CC9=O)=O)=O)=O)=O)=O)=O)=O.OC(C(Cl)Cl)=O
InChi Code
InChI=1S/C73H97N11O22.C2H2Cl2O2/c1-3-55-56-39-54(85)16-17-60(56)79-67-57(55)44-83-62(67)40-59-58(70(83)92)46-104-71(93)73(59,4-2)106-72(94)105-45-50-10-14-52(15-11-50)77-69(91)61(7-5-6-20-74)78-64(87)48-103-47-63(86)75-21-23-95-25-27-97-29-31-99-33-35-101-37-38-102-36-34-100-32-30-98-28-26-96-24-22-82-43-53(80-81-82)41-76-68(90)51-12-8-49(9-13-51)42-84-65(88)18-19-66(84)89;3-1(4)2(5)6/h10-11,14-19,39-40,43,49,51,61,85H,3-9,12-13,20-38,41-42,44-48,74H2,1-2H3,(H,75,86)(H,76,90)(H,77,91)(H,78,87);1H,(H,5,6)/t49?,51?,61-,73-;/m0./s1
InChi Key
SNLXRMAUXQVOPQ-RGBFIJSISA-N
Shipping & Storage Information
Storage
-20°C
Shipping
Room temperature in continental US; may vary elsewhere
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    1 mg

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    10 mg

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    25 mg

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    Product Description

    CL2A-SN-38 is a reactive drug-linker molecule containing the topoisomerase I inhibitor SN-38 (Item No. 15632) and a maleimidocaproyl linker.1 CL2A-SN-38 has been linked to tumor-selective humanized antibodies, such as anti-Trop-2 (hRS7), as an antibody-drug conjugate (ADC) to target SN-38 to tumor sites. CL2A-SN-38 linked to hRS7 is cytotoxic to Calu-3, COLO 205, Capan-1, PC3, SK-MES-1, and BxPC-3 cancer cells (IC50s =1.95-23.14 nM). CL2A-SN-38 linked to hRS7 reduces tumor growth in BxPC-3 pancreatic and SK-MES-1 lung cancer mouse xenograft models.

    WARNING This product is not for human or veterinary use.

    References & Product Citations
    Product Description References

    1. Cardillo, T.M., Govindan, S.V., Sharkey, R.M., et al. Humanized anti-Trop-2 IgG-SN-38 conjugate for effective treatment of diverse epithelial cancers: Preclinical studies in human cancer xenograft models and monkeys. Clin. Cancer Res. 17(10), 3157-3169 (2011).