Catalog No. Size PriceQuantity
M12883-2 2mg solid $625
M12883-10 10mg solid $2,500


CALP1 is a calmodulin (CaM) agonist (Kd of 88 µM) with binding to the CaM EF-hand/Ca2+-binding site. CALP1 blocks calcium influx and apoptosis (IC50 of 44.78 µM) through inhibition of calcium channel opening. CALP1 blocks glutamate receptor channels and blocks a store-operated nonselective cation channel. CALP1 activates CaM-dependent phosphodiesterase activity.

Product information

CAS Number: 145224-99-3

Molecular Weight: 842.08

Formula: C40H75N9O10

Chemical Name: (2S)-6-amino-2-[(Z)-[(2S)-2-[(Z)-[(2S)-2-[(Z)-[(2S)-2-[(Z)-[(2S, 3R)-2-[(Z)-[(2S, 3S)-2-[(Z)-[(2S)-2-[(Z)-[(2S)-2-amino-1-hydroxy-3-methylbutylidene]amino]-1-hydroxypropylidene]amino]-1-hydroxy-3-methylpentylidene]amino]-1, 3-dihydroxybutylidene]amino]-1-hydroxy-3-methylbutylidene]amino]-1-hydroxy-4-methylpentylidene]amino]-1-hydroxy-3-methylbutylidene]amino]hexanoic acid

Smiles: CC[C@H](C)[C@H](/N=C(\O)/[C@H](C)/N=C(\O)/[C@@H](N)C(C)C)/C(/O)=N/[C@@H]([C@@H](C)O)/C(/O)=N/[C@@H](C(C)C)/C(/O)=N/[C@@H](CC(C)C)/C(/O)=N/[C@@H](C(C)C)/C(/O)=N/[C@@H](CCCCN)C(O)=O


InChi: InChI=1S/C40H75N9O10/c1-13-23(10)31(48-33(51)24(11)43-35(53)28(42)20(4)5)38(56)49-32(25(12)50)39(57)47-30(22(8)9)37(55)45-27(18-19(2)3)34(52)46-29(21(6)7)36(54)44-26(40(58)59)16-14-15-17-41/h19-32,50H,13-18,41-42H2,1-12H3,(H,43,53)(H,44,54)(H,45,55)(H,46,52)(H,47,57)(H,48,51)(H,49,56)(H,58,59)/t23-,24-,25+,26-,27-,28-,29-,30-,31-,32-/m0/s1

Technical Data

Appearance: Solid Power

Purity: ≥98% (or refer to the Certificate of Analysis)

Solubility: Soluble in DMSO

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥360 days if stored properly.

Stock Solution Storage: 0 - 4 oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined

HS Tariff Code: 382200


  1. R Houtman, et al. Attenuation of very late antigen-5-mediated adhesion of bone marrow-derived mast cells to fibronectin by peptides with inverted hydropathy to EF-hands. J Immunol. 2001 Jan 15;166(2):861-7.
  2. R Ten Broeke, et al. Calcium sensors as new therapeutic targets for airway hyperresponsiveness and asthma. FASEB J. 2001 Aug;15(10):1831-3.
  3. M K Manion, et al. A new type of Ca(2+) channel blocker that targets Ca(2+) sensors and prevents Ca(2+)-mediated apoptosis. FASEB J. 2000 Jul;14(10):1297-306.

Products are for research use only. Not for human use.

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