(Arg)9 (trifluoroacetate salt)

(Arg)9 is a cationic cell-penetrating peptide. It has been used to deliver various cargo to cells, including fluorescent proteins and plasmids. (Arg)9 (5 and 10 µM) also protects primary rat cortical neurons from glutamate-induced excitotoxicity.Formal Name: L-arginyl-L-arginyl-L-arginyl-L-arginyl-L-arginyl-L-arginyl-L-arginyl-L-arginyl-L-arginine, 2,2,2-trifluoroacetate. CAS Number: 1228255-42-2. Synonyms: Nona-Arginine, Poly-Arginine-9, RRRRRRRRR. Molecular Formula: C54H110N36O10 . XCF3COOH. Formula Weight: 1423.7. Purity: >95%. Formulation: (Request formulation change), A solid. Solubility: DMSO: Slightly soluble, PBS (pH 7.2): 5 mg/ml. SMILES: N=C(N)NCCC[C@@H](C(O)=O)NC([C@H](CCCNC(N)=N)NC([C@H](CCCNC(N)=N)NC([C@H](CCCNC(N)=N)NC([C@H](CCCNC(N)=N)NC([C@H](CCCNC(N)=N)NC([C@H](CCCNC(N)=N)NC([C@H](CCCNC(N)=N)NC([C@@H](N)CCCNC(N)=N)=O)=O)=O)=O)=O)=O)=O)=O.OC(C(F)(F)F)=O. InChi Code: InChI=1S/C54H110N36O10.C2HF3O2/c55-28(10-1-19-74-46(56)57)37(91)83-29(11-2-20-75-47(58)59)38(92)84-30(12-3-21-76-48(60)61)39(93)85-31(13-4-22-77-49(62)63)40(94)86-32(14-5-23-78-50(64)65)41(95)87-33(15-6-24-79-51(66)67)42(96)88-34(16-7-25-80-52(68)69)43(97)89-35(17-8-26-81-53(70)71)44(98)90-36(45(99)100)18-9-27-82-54(72)73,3-2(4,5)1(6)7/h28-36H,1-27,55H2,(H,83,91)(H,84,92)(H,85,93)(H,86,94)(H,87,95)(H,88,96)(H,89,97)(H,90,98)(H,99,100)(H4,56,57,74)(H4,58,59,75)(H4,60,61,76)(H4,62,63,77)(H4,64,65,78)(H4,66,67,79)(H4,68,69,80)(H4,70,71,81)(H4,72,73,82),(H,6,7)/t28-,29-,30-,31-,32-,33-,34-,35-,36-,/m0./s1. InChi Key: XGQPDCDNEZIVKJ-MXIXLHBGSA-N.