For research use only. Not for therapeutic Use.
PEN-221(CAT: I034376) is a targeted peptide-drug conjugate (PDC) designed for advanced cancer research. It combines a somatostatin receptor 2 (SSTR2)-targeting peptide with a potent cytotoxic payload, allowing selective delivery to SSTR2-expressing tumor cells. This precision-targeted approach minimizes off-target effects while maximizing therapeutic potential. PEN-221 is particularly valuable for studying neuroendocrine tumors and other malignancies expressing SSTR2. Its high specificity and efficacy make it a powerful tool for exploring targeted cancer therapies, drug delivery systems, and tumor biology, advancing the development of innovative oncology treatments.
| Catalog Number | I034376 |
| CAS Number | 1853254-97-3 |
| Synonyms | PEN-221; PEN 221; PEN221; DM1-conjugate, DM1-Tyr3-octreotate; SSTR2-targeting protein/DM1 conjugate; maytansinoid conjugate; |
| Molecular Formula | C83H109ClN14O20S4 |
| Purity | 98% |
| Solubility | Soluble in DMSO |
| Appearance | Solid powder |
| Storage | Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years). |
| IUPAC Name | [(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[3-[[(2R)-3-amino-2-[[(4R,7S,10S,13R,16S,19R)-10-(4-aminobutyl)-19-[[(2R)-2-amino-3-phenylpropanoyl]amino]-7-[(1R)-1-hydroxyethyl]-16-[(4-hydroxyphenyl)methyl]-13-(1H-indol-3-ylmethyl)-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentazacycloicosane-4-carbonyl]amino]-3-oxopropyl]disulfanyl]propanoyl-methylamino]propanoate |
| InChI | InChI=1S/C83H109ClN14O20S4/c1-44-18-17-24-65(115-9)83(113)39-64(116-81(112)96-83)45(2)71-82(5,118-71)66(38-68(102)98(7)62-35-50(32-44)36-63(114-8)69(62)84)117-80(111)46(3)97(6)67(101)29-31-119-120-41-59(72(87)103)92-78(109)61-43-122-121-42-60(93-73(104)54(86)33-48-19-11-10-12-20-48)77(108)90-57(34-49-25-27-52(100)28-26-49)75(106)91-58(37-51-40-88-55-22-14-13-21-53(51)55)76(107)89-56(23-15-16-30-85)74(105)95-70(47(4)99)79(110)94-61/h10-14,17-22,24-28,35-36,40,45-47,54,56-61,64-66,70-71,88,99-100,113H,15-16,23,29-34,37-39,41-43,85-86H2,1-9H3,(H2,87,103)(H,89,107)(H,90,108)(H,91,106)(H,92,109)(H,93,104)(H,94,110)(H,95,105)(H,96,112)/b24-17+,44-18+/t45-,46+,47-,54-,56+,57+,58-,59+,60+,61+,64+,65-,66+,70+,71+,82+,83+/m1/s1 |
| InChIKey | JVPMJFUBODFGNB-UFDFPQQFSA-N |
| SMILES | O=C([C@H](CSSC[C@@H](C1=O)NC([C@H](N)CC2=CC=CC=C2)=O)NC([C@@]([H])(NC([C@@H](NC([C@@H](CC3=CNC4=C3C=CC=C4)NC([C@H](CC5=CC=C(O)C=C5)N1)=O)=O)CCCCN)=O)[C@H](O)C)=O)N[C@H](C(N)=O)CSSCCC(N(C)[C@@H](C)C(O[C@@H]6[C@](C)(O7)[C@@H]7[C@H](C)[C@](OC(N8)=O)([H])C[C@]8(O)[C@H](OC)/C=C/C=C(C)/CC9=CC(OC)=C(Cl)C(N(C)C(C6)=O)=C9)=O)=O |
