Calyculin A

For research use only. Not for therapeutic Use.

  • CAT Number: I000139
  • CAS Number: 101932-71-2
  • Molecular Formula: C₅₀H₈₁N₄O₁₅P
  • Molecular Weight: 1009.17
  • Purity: 90%
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Calyculin A is a potent inhibitor of the catalytic subunit of type-2A phosphatase, with IC50 values of 0.5 to 1 nM.


Catalog Number I000139
CAS Number 101932-71-2
Molecular Formula C₅₀H₈₁N₄O₁₅P
Purity 90%
Target Protein Ser/Thr Phosphatases
IUPAC Name [(2R,3R,5R,7R,8S,9S)-2-[(1S,3S,4S,5R,6R,7E,9E,11E,13Z)-14-cyano-3,5-dihydroxy-1-methoxy-4,6,8,9,13-pentamethyltetradeca-7,9,11,13-tetraenyl]-9-[(E)-3-[2-[(2S)-4-[[(2S,3S,4S)-4-(dimethylamino)-2,3-dihydroxy-5-methoxypentanoyl]amino]butan-2-yl]-1,3-oxazol-4-yl]prop-2-enyl]-7-hydroxy-4,4,8-trimethyl-1,10-dioxaspiro[4.5]decan-3-yl] dihydrogen phosphate
InChI InChI=1S/C50H81N4O15P/c1-29(20-22-51)16-14-17-30(2)32(4)24-33(5)42(57)35(7)38(55)25-41(65-13)45-46(69-70(61,62)63)49(8,9)50(68-45)26-39(56)34(6)40(67-50)19-15-18-36-27-66-48(53-36)31(3)21-23-52-47(60)44(59)43(58)37(28-64-12)54(10)11/h14-18,20,24,27,31,33-35,37-46,55-59H,19,21,23,25-26,28H2,1-13H3,(H,52,60)(H2,61,62,63)/b16-14+,18-15+,29-20-,30-17+,32-24+/t31-,33+,34-,35-,37-,38-,39+,40-,41-,42+,43-,44-,45+,46-,50+/m0/s1
InChIKey FKAWLXNLHHIHLA-YCBIHMBMSA-N

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