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ChemicalBook >> CAS DataBase List >> 2-(R)-(1-Ethyl-2-hydroxyethylamino)-6-(4-(2-pyridyl)benzyl)-9-isopropylpurinetrihydrochloride

2-(R)-(1-Ethyl-2-hydroxyethylamino)-6-(4-(2-pyridyl)benzyl)-9-isopropylpurinetrihydrochloride

2-(R)-(1-Ethyl-2-hydroxyethylamino)-6-(4-(2-pyridyl)benzyl)-9-isopropylpurinetrihydrochloride price.
  • $32 - $3374.8
  • Product name: 2-(R)-(1-Ethyl-2-hydroxyethylamino)-6-(4-(2-pyridyl)benzyl)-9-isopropylpurinetrihydrochloride
  • CAS: 294646-77-8
  • MF: C24H29N7O
  • MW: 431.53
  • EINECS:
  • MDL Number:MFCD18785641
  • Synonyms:(R)-CR8;2-(R)-(1-Ethyl-2-hydroxyethylamino)-6-(4-(2-pyridyl)benzyl)-9-isopropylpurinetrihydrochloride;1-Butanol,2-[[9-(1-Methylethyl)-6-[[[4-(2-pyridinyl)phenyl]Methyl]aMino]-9H-purin-2-yl]aMino]-,(2R)-;(S)-CR8;(2R)-2-[[9-(1-Methylethyl)-6-[[[4-(2-pyridinyl)phenyl]methyl]amino]-9H-purin-2-yl]amino]-1-butanol;CR8, (R)-Isomer ;(2R)-2-[[9-(1-Methylethyl)-6-[[[4-(2-pyridinyl)phenyl]methyl]amino]-9H-purin-2-yl]amino]-butanol-1;(R)-2-(1-Hydroxybut-2-ylamino)-6-[4-(2-pyridyl)phenylmethylamino]-9-iso-propylpurine
48 prices
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Brand
  • aablocks
  • ACHEMBLOCK
  • Adipogen Life Sciences
  • AK Scientific
  • American Custom Chemicals Corporation
  • Arctom
  • AvaChem
  • Axon Medchem
  • Biosynth
  • Cayman Chemical
  • Chemenu
  • ChemScene
  • DC Chemicals
  • Sigma-Aldrich
  • Tocris
  • TRC
  • Usbiological
Package
  • 10
  • 10mM*1mLinDMSO(Solid+Solvent)
  • 1mg
  • 5mg
  • 10mg
  • 25mg
  • 50mg
  • 100mg
  • 10mM*1mLinDMSO(Solution)
  • 250MG
  • 0.5g
  • 1G
  • Manufactureraablocks
  • Product numberAA002YDI
  • Product descriptionCR8, (R)-Isomer 99%
  • Packaging1mg
  • Price$32
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA002YDI
  • Product descriptionCR8, (R)-Isomer 99%
  • Packaging10mg
  • Price$79
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA002YDI
  • Product descriptionCR8, (R)-Isomer 99%
  • Packaging25mg
  • Price$193
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA002YDI
  • Product descriptionCR8, (R)-Isomer 99%
  • Packaging50mg
  • Price$309
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA002YDI
  • Product descriptionCR8, (R)-Isomer 99%
  • Packaging100mg
  • Price$469
  • Updated2026-05-28
  • Buy
  • ManufacturerACHEMBLOCK
  • Product numberX203143
  • Product description(R)-CR8 98.00%
  • Packaging100MG
  • Price$470
  • Updated2026-05-27
  • Buy
  • ManufacturerACHEMBLOCK
  • Product numberX203143
  • Product description(R)-CR8 98.00%
  • Packaging250MG
  • Price$800
  • Updated2026-05-27
  • Buy
  • ManufacturerACHEMBLOCK
  • Product numberX203143
  • Product description(R)-CR8 98.00%
  • Packaging1G
  • Price$2400
  • Updated2026-05-27
  • Buy
  • ManufacturerAdipogen Life Sciences
  • Product numberAG-MR-C0003-M050
  • Product description(R)-CR8 ≥98%(NMR)
  • Packaging50mg
  • Price$550
  • Updated2026-05-06
  • Buy
  • ManufacturerAdipogen Life Sciences
  • Product numberAG-MR-C0003-M010
  • Product description(R)-CR8 ≥98%(NMR)
  • Packaging10mg
  • Price$260
  • Updated2026-05-06
  • Buy
  • ManufacturerAdipogen Life Sciences
  • Product numberAG-CR1-0039-M001
  • Product description(R)-CR8 ≥98%(NMR)
  • Packaging1mg
  • Price$60
  • Updated2026-05-06
  • Buy
  • ManufacturerAdipogen Life Sciences
  • Product numberAG-CR1-0039-M005
  • Product description(R)-CR8 ≥98%(NMR)
  • Packaging5mg
  • Price$180
  • Updated2026-05-06
  • Buy
  • ManufacturerAK Scientific
  • Product number3878BB
  • Product description(2R)-2-({9-(1-Methylethyl)-6-[(4-pyridin-2-ylbenzyl)amino]-9H-purin-2-yl}amino)butan-1-ol
  • Packaging10mg
  • Price$403
  • Updated2021-12-16
  • Buy
  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberBRS0000851
  • Product description(R)-CR8 95.00%
  • Packaging5MG
  • Price$815.02
  • Updated2021-12-16
  • Buy
  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberBRS0000851
  • Product description(R)-CR8 95.00%
  • Packaging25MG
  • Price$1474.7
  • Updated2021-12-16
  • Buy
  • ManufacturerArctom
  • Product numberHY-18340
  • Product description(R)​-​CR8 99.52%
  • Packaging25mg
  • Price$357
  • Updated2026-05-26
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
aablocks AA002YDI CR8, (R)-Isomer 99% 1mg $32 2026-05-28 Buy
aablocks AA002YDI CR8, (R)-Isomer 99% 10mg $79 2026-05-28 Buy
aablocks AA002YDI CR8, (R)-Isomer 99% 25mg $193 2026-05-28 Buy
aablocks AA002YDI CR8, (R)-Isomer 99% 50mg $309 2026-05-28 Buy
aablocks AA002YDI CR8, (R)-Isomer 99% 100mg $469 2026-05-28 Buy
ACHEMBLOCK X203143 (R)-CR8 98.00% 100MG $470 2026-05-27 Buy
ACHEMBLOCK X203143 (R)-CR8 98.00% 250MG $800 2026-05-27 Buy
ACHEMBLOCK X203143 (R)-CR8 98.00% 1G $2400 2026-05-27 Buy
Adipogen Life Sciences AG-MR-C0003-M050 (R)-CR8 ≥98%(NMR) 50mg $550 2026-05-06 Buy
Adipogen Life Sciences AG-MR-C0003-M010 (R)-CR8 ≥98%(NMR) 10mg $260 2026-05-06 Buy
Adipogen Life Sciences AG-CR1-0039-M001 (R)-CR8 ≥98%(NMR) 1mg $60 2026-05-06 Buy
Adipogen Life Sciences AG-CR1-0039-M005 (R)-CR8 ≥98%(NMR) 5mg $180 2026-05-06 Buy
AK Scientific 3878BB (2R)-2-({9-(1-Methylethyl)-6-[(4-pyridin-2-ylbenzyl)amino]-9H-purin-2-yl}amino)butan-1-ol 10mg $403 2021-12-16 Buy
American Custom Chemicals Corporation BRS0000851 (R)-CR8 95.00% 5MG $815.02 2021-12-16 Buy
American Custom Chemicals Corporation BRS0000851 (R)-CR8 95.00% 25MG $1474.7 2021-12-16 Buy
Arctom HY-18340 (R)​-​CR8 99.52% 25mg $357 2026-05-26 Buy

Properties

Melting point :98-100℃
Boiling point :671.4±65.0 °C(Predicted)
Density :1.27±0.1 g/cm3(Predicted)
storage temp. :2-8°C
solubility :DMSO: ≥10mg/mL
form :powder
pka :14.56±0.10(Predicted)
color :off-white
Stability :Stable for 2 years as supplied. Solutions in DMSO may be stored at -20°C for up to 1 month.
InChIKey :HOCBJBNQIQQQGT-LJQANCHMSA-N
SMILES :CC[C@H](CO)Nc1nc(NCc2ccc(cc2)-c3ccccn3)c4ncn(C(C)C)c4n1

Safety Information

Symbol(GHS): Exclamation Mark (GHS07)
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Description

Cyclin-dependent kinases (CDKs) are key regulators of cell cycle progression and are therefore promising targets for cancer therapy. (R)-CR8 is a second-generation analog of (R)-roscovitine that inhibits Cdk1/cyclin B, Cdk2/cyclin A, Cdk2/cyclin E, Cdk5/p25, and Cdk9/cyclin T with IC50 values of 0.09, 0.072, 0.041, 0.11, and 0.18 μM, respectively. (R)-CR8 has 2- to 4-fold improved potency for the inhibition of CDKs over (R)-roscovitine and can inhibit the proliferation of various cancer cell lines with ~40-fold more potency than (R)-roscovitine (IC50s ~ 0.39 versus 27.8 μM, respectively). (R)-CR8 also inhibits casein kinase 1 (CK1δ/ε) with an IC50 value of 0.40 μM and inhibits GSK3α/β with an IC50 value of 12 μM.

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