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ChemicalBook >> CAS DataBase List >> Cucurbitacin IIb

Cucurbitacin IIb

Cucurbitacin IIb price.
  • $77 - $2273
  • Product name: Cucurbitacin IIb
  • CAS: 50298-90-3
  • MF: C30H48O7
  • MW: 520.7
  • EINECS:
  • MDL Number:MFCD02752610
  • Synonyms:Cucurbitacin IIb;(10α)-2β,3α,16α,20,25-Pentahydroxy-9β-methyl-19-norlanost-5-ene-11,22-dione;23,24-Dihydrocucurbitacin F;Cucurbitacin Ⅱb;(1S,2S,4R,9β,16α,17ξ)-1,2,16,20,25-pentahydroxy-9,10,14-trimethyl-4,9-cyclo-9,10-secocholest-5-ene-11,22-dione;Hemslecin B;19-Norlanost-5-ene-11,22-dione, 2,3,16,20,25-pentahydroxy-9-methyl-, (2β,3α,9β,10α,16α)-;(2S,3S,8S,9R,10R,13R,14S,16R,17R)-17-[(2R)-2,6-dihydroxy-6-methyl-3-oxoheptan-2-yl]-2,3,16-trihydroxy-4,4,9,13,14-pentamethyl-1,2,3,7,8,10,12,15,16,17-decahydrocyclopenta[a]phenanthren-11-one
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Brand
  • aablocks
  • ACHEMBLOCK
  • AK Scientific
  • American Custom Chemicals Corporation
  • ApexBio Technology
  • Arctom
  • AvaChem
  • Biorbyt Ltd
  • Biosynth
  • ChemScene
  • Crysdot
  • DC Chemicals
  • Matrix Scientific
  • Medical Isotopes, Inc.
  • Usbiological
Package
  • 10mM*1mLinDMSO(Solution)
  • 1mg
  • 5mg
  • 10mg
  • 20MG
  • 10mM*1mLinDMSO(Solid+Solvent)
  • 25mg
  • 50mg
  • 100mg
  • 250mg
  • 1g
  • Manufactureraablocks
  • Product numberAA00DHJR
  • Product description(2S,3S,8S,9R,10R,13R,14S,16R,17R)-17-((R)-2,6-Dihydroxy-6-methyl-3-oxoheptan-2-yl)-2,3,16-trihydroxy-4,4,9,13,14-pentamethyl-1,2,3,4,7,8,9,10,12,13,14,15,16,17-tetradecahydro-11H-cyclopenta[a]phenanthren-11-one
  • Packaging1mg
  • Price$77
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA00DHJR
  • Product description(2S,3S,8S,9R,10R,13R,14S,16R,17R)-17-((R)-2,6-Dihydroxy-6-methyl-3-oxoheptan-2-yl)-2,3,16-trihydroxy-4,4,9,13,14-pentamethyl-1,2,3,4,7,8,9,10,12,13,14,15,16,17-tetradecahydro-11H-cyclopenta[a]phenanthren-11-one ≥98%
  • Packaging5mg
  • Price$150
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA00DHJR
  • Product description(2S,3S,8S,9R,10R,13R,14S,16R,17R)-17-((R)-2,6-Dihydroxy-6-methyl-3-oxoheptan-2-yl)-2,3,16-trihydroxy-4,4,9,13,14-pentamethyl-1,2,3,4,7,8,9,10,12,13,14,15,16,17-tetradecahydro-11H-cyclopenta[a]phenanthren-11-one
  • Packaging10mg
  • Price$228
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA00DHJR
  • Product description(2S,3S,8S,9R,10R,13R,14S,16R,17R)-17-((R)-2,6-Dihydroxy-6-methyl-3-oxoheptan-2-yl)-2,3,16-trihydroxy-4,4,9,13,14-pentamethyl-1,2,3,4,7,8,9,10,12,13,14,15,16,17-tetradecahydro-11H-cyclopenta[a]phenanthren-11-one
  • Packaging25mg
  • Price$391
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA00DHJR
  • Product description(2S,3S,8S,9R,10R,13R,14S,16R,17R)-17-((R)-2,6-Dihydroxy-6-methyl-3-oxoheptan-2-yl)-2,3,16-trihydroxy-4,4,9,13,14-pentamethyl-1,2,3,4,7,8,9,10,12,13,14,15,16,17-tetradecahydro-11H-cyclopenta[a]phenanthren-11-one
  • Packaging50mg
  • Price$576
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA00DHJR
  • Product description(2S,3S,8S,9R,10R,13R,14S,16R,17R)-17-((R)-2,6-Dihydroxy-6-methyl-3-oxoheptan-2-yl)-2,3,16-trihydroxy-4,4,9,13,14-pentamethyl-1,2,3,4,7,8,9,10,12,13,14,15,16,17-tetradecahydro-11H-cyclopenta[a]phenanthren-11-one
  • Packaging100mg
  • Price$792
  • Updated2026-05-28
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  • ManufacturerACHEMBLOCK
  • Product numberU106923
  • Product descriptionCurcurbitacin Iib 98.00%
  • Packaging50MG
  • Price$315
  • Updated2026-05-27
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  • ManufacturerACHEMBLOCK
  • Product numberU106923
  • Product descriptionCurcurbitacin Iib 98.00%
  • Packaging20MG
  • Price$160
  • Updated2026-05-27
  • Buy
  • ManufacturerAK Scientific
  • Product number6889AB
  • Product descriptionCucurbitacinIib
  • Packaging1g
  • Price$2273
  • Updated2021-12-16
  • Buy
  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberPXT0005262
  • Product descriptionDIHYDROCUCURBITACIN F 95.00%
  • Packaging5MG
  • Price$500.15
  • Updated2021-12-16
  • Buy
  • ManufacturerApexBio Technology
  • Product numberN2200
  • Product descriptionCucurbitacin B
  • Packaging20mg
  • Price$450
  • Updated2021-12-16
  • Buy
  • ManufacturerApexBio Technology
  • Product numberN2200
  • Product descriptionCucurbitacin Ⅱb
  • Packaging20mg
  • Price$450
  • Updated2026-05-06
  • Buy
  • ManufacturerArctom
  • Product numberHY-N1987
  • Product descriptionCucurbitacin IIb 99.74%
  • Packaging50mg
  • Price$798
  • Updated2026-05-26
  • Buy
  • ManufacturerArctom
  • Product numberHY-N1987
  • Product descriptionCucurbitacin IIb 99.74%
  • Packaging25mg
  • Price$532
  • Updated2026-05-26
  • Buy
  • ManufacturerArctom
  • Product numberHY-N1987
  • Product descriptionCucurbitacin IIb 99.74%
  • Packaging10mM*1mLinDMSO(Solution)
  • Price$229
  • Updated2026-05-26
  • Buy
  • ManufacturerArctom
  • Product numberHY-N1987
  • Product descriptionCucurbitacin IIb 99.74%
  • Packaging5mg
  • Price$200
  • Updated2026-05-26
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
aablocks AA00DHJR (2S,3S,8S,9R,10R,13R,14S,16R,17R)-17-((R)-2,6-Dihydroxy-6-methyl-3-oxoheptan-2-yl)-2,3,16-trihydroxy-4,4,9,13,14-pentamethyl-1,2,3,4,7,8,9,10,12,13,14,15,16,17-tetradecahydro-11H-cyclopenta[a]phenanthren-11-one 1mg $77 2026-05-28 Buy
aablocks AA00DHJR (2S,3S,8S,9R,10R,13R,14S,16R,17R)-17-((R)-2,6-Dihydroxy-6-methyl-3-oxoheptan-2-yl)-2,3,16-trihydroxy-4,4,9,13,14-pentamethyl-1,2,3,4,7,8,9,10,12,13,14,15,16,17-tetradecahydro-11H-cyclopenta[a]phenanthren-11-one ≥98% 5mg $150 2026-05-28 Buy
aablocks AA00DHJR (2S,3S,8S,9R,10R,13R,14S,16R,17R)-17-((R)-2,6-Dihydroxy-6-methyl-3-oxoheptan-2-yl)-2,3,16-trihydroxy-4,4,9,13,14-pentamethyl-1,2,3,4,7,8,9,10,12,13,14,15,16,17-tetradecahydro-11H-cyclopenta[a]phenanthren-11-one 10mg $228 2026-05-28 Buy
aablocks AA00DHJR (2S,3S,8S,9R,10R,13R,14S,16R,17R)-17-((R)-2,6-Dihydroxy-6-methyl-3-oxoheptan-2-yl)-2,3,16-trihydroxy-4,4,9,13,14-pentamethyl-1,2,3,4,7,8,9,10,12,13,14,15,16,17-tetradecahydro-11H-cyclopenta[a]phenanthren-11-one 25mg $391 2026-05-28 Buy
aablocks AA00DHJR (2S,3S,8S,9R,10R,13R,14S,16R,17R)-17-((R)-2,6-Dihydroxy-6-methyl-3-oxoheptan-2-yl)-2,3,16-trihydroxy-4,4,9,13,14-pentamethyl-1,2,3,4,7,8,9,10,12,13,14,15,16,17-tetradecahydro-11H-cyclopenta[a]phenanthren-11-one 50mg $576 2026-05-28 Buy
aablocks AA00DHJR (2S,3S,8S,9R,10R,13R,14S,16R,17R)-17-((R)-2,6-Dihydroxy-6-methyl-3-oxoheptan-2-yl)-2,3,16-trihydroxy-4,4,9,13,14-pentamethyl-1,2,3,4,7,8,9,10,12,13,14,15,16,17-tetradecahydro-11H-cyclopenta[a]phenanthren-11-one 100mg $792 2026-05-28 Buy
ACHEMBLOCK U106923 Curcurbitacin Iib 98.00% 50MG $315 2026-05-27 Buy
ACHEMBLOCK U106923 Curcurbitacin Iib 98.00% 20MG $160 2026-05-27 Buy
AK Scientific 6889AB CucurbitacinIib 1g $2273 2021-12-16 Buy
American Custom Chemicals Corporation PXT0005262 DIHYDROCUCURBITACIN F 95.00% 5MG $500.15 2021-12-16 Buy
ApexBio Technology N2200 Cucurbitacin B 20mg $450 2021-12-16 Buy
ApexBio Technology N2200 Cucurbitacin Ⅱb 20mg $450 2026-05-06 Buy
Arctom HY-N1987 Cucurbitacin IIb 99.74% 50mg $798 2026-05-26 Buy
Arctom HY-N1987 Cucurbitacin IIb 99.74% 25mg $532 2026-05-26 Buy
Arctom HY-N1987 Cucurbitacin IIb 99.74% 10mM*1mLinDMSO(Solution) $229 2026-05-26 Buy
Arctom HY-N1987 Cucurbitacin IIb 99.74% 5mg $200 2026-05-26 Buy

Properties

Melting point :158-159℃
Boiling point :668.4±55.0 °C(Predicted)
Density :1.22±0.1 g/cm3 (20 ºC 760 Torr)
storage temp. :2-8°C
pka :12.86±0.29(Predicted)
form :Solid
color :White to off-white
InChIKey :VVBWBGOEAVGFTN-JCJZBDFNNA-N

Safety Information

Symbol(GHS):
Signal word:
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
Precautionary statements:

Description

Cucurbitacin IIa and cucurbitacin IIb are the characteristic chemical constituents of the hemsleya. Hemsleyadinum are extracted from the Cucurbitaceae, Chrysanthemum, and Hemsleya, which have the function of clearing heat and removing toxicity and antisepsis and anti-inflammation. There are 31 species of Hemsleya in the world, most of which are distributed in China’s Yunnan, Guizhou, and Sichuan provinces, besides the 2 species distributed in India and Vietnam. The main species are H. emiensis, H. pengxianensis, H. amabilis, H. dolichocarpa, H. graciliflora, and H. gigantha . Hemsleya plants are commonly used as Chinese herbal medicines.

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