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ChemicalBook >> CAS DataBase List >> (4aR,5aR)-4,4a,5,5a-tetrahydro-1H-cyclopropa[4,5]cyclopenta[1,2-c]pyrazole-3-carboxylic acid

(4aR,5aR)-4,4a,5,5a-tetrahydro-1H-cyclopropa[4,5]cyclopenta[1,2-c]pyrazole-3-carboxylic acid

(4aR,5aR)-4,4a,5,5a-tetrahydro-1H-cyclopropa[4,5]cyclopenta[1,2-c]pyrazole-3-carboxylic acid price.
  • $41 - $7430
  • Product name: (4aR,5aR)-4,4a,5,5a-tetrahydro-1H-cyclopropa[4,5]cyclopenta[1,2-c]pyrazole-3-carboxylic acid
  • CAS: 1268882-43-4
  • MF: C8H8N2O2
  • MW: 164.16
  • EINECS:
  • MDL Number:MFCD27991272
  • Synonyms:(4aR,5aR)-4,4a,5,5a-tetrahydro-1H-cyclopropa[4,5]cyclopenta[1,2-c]pyrazole-3-carboxylic acid;(1S,2S)-(+)-1,2-Cyclohexanediamino-N,N'-bis(3,5-di-t-butylsalicylidene)cobalt(III) p-toluenesulfonat;(4aR,5aR)-4,4a,5,5a-Tetrahydro-1H-cyclopropa[4,5]cyclopenta[1,2]pyrazole-3-carboxylic acid;(2R,4R)-8,9-diazatricyclo[4.3.0.02?]nona-1(6),7-diene-7-carboxylic acid;1H-Cyclopropa[4,5]cyclopenta[1,2-c]pyrazole-3-carboxylic acid, 4,4a,5,5a-tetrahydro-, (4aR,5aR)-;(2R,4R)-8,9-diazatricyclo[4.3.0.02?]nona-1(6),7-diene-7-carboxylic acid - [D82147];MK-1903
Price53 Properties Safety Information Description
53 prices
Selected condition：
Brand
  • aablocks
  • ACHEMBLOCK
  • ApexBio Technology
  • Arctom
  • Biorbyt Ltd
  • Biosynth
  • Cayman Chemical
  • ChemScene
  • CSNpharm
  • Synthonix
  • Tocris
  • TRC
  • Usbiological
Package
  • 2mg
  • 10mM*1mLinDMSO(Solution)
  • 10mM*1mLinDMSO(Solid+Solvent)
  • 10
  • 1mg
  • 5mg
  • 10mg
  • 25mg
  • 50mg
  • 100MG
  • 200mg
  • 250MG
  • 500mg
  • 0.5g
  • 1G
  • 5g
  • Manufactureraablocks
  • Product numberAA01EKS7
  • Product descriptionMK-1903 ≥98%
  • Packaging1mg
  • Price$41
  • Updated2026-05-30
  • Buy
  • Manufactureraablocks
  • Product numberAA01EKS7
  • Product descriptionMK-1903 98%
  • Packaging5mg
  • Price$68
  • Updated2026-05-30
  • Buy
  • Manufactureraablocks
  • Product numberAA01EKS7
  • Product descriptionMK-1903 98%
  • Packaging10mg
  • Price$102
  • Updated2026-05-30
  • Buy
  • ManufacturerACHEMBLOCK
  • Product numberX204165
  • Product description(4aR,5aR)-4,4a,5,5a-tetrahydro-1H-cyclopropa[4,5]cyclopenta[1,2-c]pyrazole-3-carboxylic acid 97%
  • Packaging100MG
  • Price$655
  • Updated2026-05-27
  • Buy
  • ManufacturerACHEMBLOCK
  • Product numberX204165
  • Product description(4aR,5aR)-4,4a,5,5a-tetrahydro-1H-cyclopropa[4,5]cyclopenta[1,2-c]pyrazole-3-carboxylic acid 97%
  • Packaging250MG
  • Price$1090
  • Updated2026-05-27
  • Buy
  • ManufacturerACHEMBLOCK
  • Product numberX204165
  • Product description(4aR,5aR)-4,4a,5,5a-tetrahydro-1H-cyclopropa[4,5]cyclopenta[1,2-c]pyrazole-3-carboxylic acid 97%
  • Packaging1G
  • Price$2225
  • Updated2026-05-27
  • Buy
  • ManufacturerApexBio Technology
  • Product numberB5658
  • Product descriptionMK1903
  • Packaging50mg
  • Price$1385
  • Updated2021-12-16
  • Buy
  • ManufacturerApexBio Technology
  • Product numberB5658
  • Product descriptionMK 1903
  • Packaging10mg
  • Price$282
  • Updated2026-05-06
  • Buy
  • ManufacturerArctom
  • Product numberHY-107581
  • Product descriptionMK-1903 99.68%
  • Packaging25mg
  • Price$304
  • Updated2026-05-26
  • Buy
  • ManufacturerArctom
  • Product numberHY-107581
  • Product descriptionMK-1903 99.68%
  • Packaging50mg
  • Price$426
  • Updated2026-05-26
  • Buy
  • ManufacturerArctom
  • Product numberHY-107581
  • Product descriptionMK-1903 99.68%
  • Packaging100mg
  • Price$596
  • Updated2026-05-26
  • Buy
  • ManufacturerArctom
  • Product numberHY-107581
  • Product descriptionMK-1903 99.68%
  • Packaging5mg
  • Price$114
  • Updated2026-05-26
  • Buy
  • ManufacturerArctom
  • Product numberHY-107581
  • Product descriptionMK-1903 99.68%
  • Packaging10mM*1mLinDMSO(Solid+Solvent)
  • Price$119
  • Updated2026-05-26
  • Buy
  • ManufacturerArctom
  • Product numberHY-107581
  • Product descriptionMK-1903 99.68%
  • Packaging10mM*1mLinDMSO(Solution)
  • Price$126
  • Updated2026-05-26
  • Buy
  • ManufacturerArctom
  • Product numberHY-107581
  • Product descriptionMK-1903 99.68%
  • Packaging10mg
  • Price$171
  • Updated2026-05-26
  • Buy
  • ManufacturerBiorbyt Ltd
  • Product numberorb1704365
  • Product descriptionMK 1903 99.96%(Mayvarybetweenbatches)
  • Packaging25mg
  • Price$200
  • Updated2026-05-06
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
aablocks AA01EKS7 MK-1903 ≥98% 1mg $41 2026-05-30 Buy
aablocks AA01EKS7 MK-1903 98% 5mg $68 2026-05-30 Buy
aablocks AA01EKS7 MK-1903 98% 10mg $102 2026-05-30 Buy
ACHEMBLOCK X204165 (4aR,5aR)-4,4a,5,5a-tetrahydro-1H-cyclopropa[4,5]cyclopenta[1,2-c]pyrazole-3-carboxylic acid 97% 100MG $655 2026-05-27 Buy
ACHEMBLOCK X204165 (4aR,5aR)-4,4a,5,5a-tetrahydro-1H-cyclopropa[4,5]cyclopenta[1,2-c]pyrazole-3-carboxylic acid 97% 250MG $1090 2026-05-27 Buy
ACHEMBLOCK X204165 (4aR,5aR)-4,4a,5,5a-tetrahydro-1H-cyclopropa[4,5]cyclopenta[1,2-c]pyrazole-3-carboxylic acid 97% 1G $2225 2026-05-27 Buy
ApexBio Technology B5658 MK1903 50mg $1385 2021-12-16 Buy
ApexBio Technology B5658 MK 1903 10mg $282 2026-05-06 Buy
Arctom HY-107581 MK-1903 99.68% 25mg $304 2026-05-26 Buy
Arctom HY-107581 MK-1903 99.68% 50mg $426 2026-05-26 Buy
Arctom HY-107581 MK-1903 99.68% 100mg $596 2026-05-26 Buy
Arctom HY-107581 MK-1903 99.68% 5mg $114 2026-05-26 Buy
Arctom HY-107581 MK-1903 99.68% 10mM*1mLinDMSO(Solid+Solvent) $119 2026-05-26 Buy
Arctom HY-107581 MK-1903 99.68% 10mM*1mLinDMSO(Solution) $126 2026-05-26 Buy
Arctom HY-107581 MK-1903 99.68% 10mg $171 2026-05-26 Buy
Biorbyt Ltd orb1704365 MK 1903 99.96%(Mayvarybetweenbatches) 25mg $200 2026-05-06 Buy
Next Last

Properties

Boiling point :438.1±45.0 °C(Predicted)
Density :1.619±0.06 g/cm3(Predicted)
storage temp. :Store at -20°C
solubility :Soluble to 100 mM in DMSO and to 50 mM in ethanol
form :Powder
pka :16.07±0.20(Predicted)
color :Off-white to light yellow

Safety Information

Symbol(GHS): Exclamation Mark (GHS07)
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
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.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P271 Use only outdoors or in a well-ventilated area.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352 IF ON SKIN: wash with plenty of soap and water.
P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P312 Call a POISON CENTER or doctor/physician if you feel unwell.
P362 Take off contaminated clothing and wash before reuse.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P501 Dispose of contents/container to..…

Description

MK 1903 is a potent GPR109A agonist that lowers free fatty acids in humans and may be used in the treatment of obesity and related weight disorders.

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Suppliers and manufacturers

TargetMol Chemicals Inc.
MK 1903
$35.00
MK 1903 CAS:1268882-43-4
PharmaBlock Sciences (Nanjing),Inc. BOC Sciences Shanghai Beckham Medical Technology Co., Ltd Shanghai EFE Biological Technology Co., Ltd. Shanghai YuanYe Biotechnology Co., Ltd. Kaixin Chemical (Hong Kong) Limited Shanghai zhigan biotechnology co., LTD NINGBOBENKANGJS PHARMTECHCO., LTD Ningbo Benkang jishi Pharmaceutical Technology Co., Ltd.