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 structure

CAS No.: 1268882-43-4

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

Synonyms: MK-1903;(2R,4R)-8,9-diazatricyclo[4.3.0.02?]nona-1(6),7-diene-7-carboxylic acid;(2R,4R)-8,9-diazatricyclo[4.3.0.02?]nona-1(6),7-diene-7-carboxylic acid - [D82147];(4aR,5aR)-4,4a,5,5a-Tetrahydro-1H-cyclopropa[4,5]cyclopenta[1,2]pyrazole-3-carboxylic acid;(4aR,5aR)-4,4a,5,5a-tetrahydro-1H-cyclopropa[4,5]cyclopenta[1,2-c]pyrazole-3-carboxylic acid;1H-Cyclopropa[4,5]cyclopenta[1,2-c]pyrazole-3-carboxylic acid, 4,4a,5,5a-tetrahydro-, (4aR,5aR)-;(1S,2S)-(+)-1,2-Cyclohexanediamino-N,N'-bis(3,5-di-t-butylsalicylidene)cobalt(III) p-toluenesulfonat

CBNumber:: CB53354510

Molecular Formula:: C8H8N2O2

Molecular Weight:: 164.16

MDL Number:: MFCD27991272

MOL File:: 1268882-43-4.mol

MSDS File:: SDS

TDS File:: TDS

Last updated:2026-07-04 10:33:10

Request For Quotation

(4aR,5aR)-4,4a,5,5a-tetrahydro-1H-cyclopropa[4,5]cyclopenta[1,2-c]pyrazole-3-carboxylic acid 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
FDA UNII	62N05GRI0P

SAFETY

Risk and Safety Statements

Symbol(GHS)	GHS07
Signal word	Warning
Hazard statements	H315-H319-H335
Precautionary statements	P261-P264-P271-P280-P302+P352-P304+P340-P305+P351+P338-P312-P362-P403+P233-P501

(4aR,5aR)-4,4a,5,5a-tetrahydro-1H-cyclopropa[4,5]cyclopenta[1,2-c]pyrazole-3-carboxylic acid price More Price(53)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Cayman Chemical	34304	MK-1903 ≥98%	1268882-43-4	1mg	$41	2026-04-30	Buy
Cayman Chemical	34304	MK-1903 ≥98%	1268882-43-4	5mg	$167	2026-04-30	Buy
Cayman Chemical	34304	MK-1903 ≥98%	1268882-43-4	10mg	$293	2026-04-30	Buy
Cayman Chemical	34304	MK-1903 ≥98%	1268882-43-4	25mg	$631	2026-04-30	Buy
Usbiological	255830	MK 1903 Asreported	1268882-43-4	10mg	$480	2026-06-03	Buy

Product number	Packaging	Price	Buy
34304	1mg	$41	Buy
34304	5mg	$167	Buy
34304	10mg	$293	Buy
34304	25mg	$631	Buy
255830	10mg	$480	Buy

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

Uses

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.

storage

Store at +4°C

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

Raw materials

Preparation Products

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

Global Suppliers ( 35)

Supplier	Tel	Email	Country	ProdList	Advantage
PharmaBlock Sciences (Nanjing),Inc.	025-86918202 4000255188	sales@pharmablock.com	China	5000	55
BOC Sciences	1-631-485-4226; 16314854226	info@bocsci.com	United States	9920	65
Shanghai Beckham Medical Technology Co., Ltd	13816613772	huahero21@sina.com	China	2994	55
Shanghai EFE Biological Technology Co., Ltd.	021-65675885 18964387627	info@efebio.com	China	9799	58
Shanghai YuanYe Biotechnology Co., Ltd.	15026964105	2881489226@qq.com	China	89667	60
Kaixin Chemical (Hong Kong) Limited	010-88886666-01 13112345678	loyson@qq.com	China	589	55
Shanghai zhigan biotechnology co., LTD		zhiqianbio@126.com	China	19765	58
TargetMol Chemicals Inc.	+1-781-999-5354; +1-00000000000	marketing@targetmol.com	United States	32431	58
NINGBOBENKANGJS PHARMTECHCO., LTD	+8615990591583 15990591583		CHINA	2028	58
Ningbo Benkang jishi Pharmaceutical Technology Co., Ltd.	15990591583		China	6129	58

Supplier	Advantage
PharmaBlock Sciences (Nanjing),Inc.	55
BOC Sciences	65
Shanghai Beckham Medical Technology Co., Ltd	55
Shanghai EFE Biological Technology Co., Ltd.	58
Shanghai YuanYe Biotechnology Co., Ltd.	60
Kaixin Chemical (Hong Kong) Limited	55
Shanghai zhigan biotechnology co., LTD	58
TargetMol Chemicals Inc.	58
NINGBOBENKANGJS PHARMTECHCO., LTD	58
Ningbo Benkang jishi Pharmaceutical Technology Co., Ltd.	58

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

Image	Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
	2026-07-04	MK 1903 1268882-43-4	$35.00-95.00		99.96%	10g	TargetMol Chemicals Inc.

MK 1903
1268882-43-4
$35.00-95.00
99.96%
TargetMol Chemicals Inc.

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

(4aR,5aR)-4,4a,5,5a-tetrahydro-1H-cyclopropa[4,5]cyclopenta[1,2-c]pyrazole-3-carboxylic acid(1268882-43-4)¹HNMR

1268882-43-4 ((4aR,5aR)-4,4a,5,5a-tetrahydro-1H-cyclopropa[4,5]cyclopenta[1,2-c]pyrazole-3-carboxylic acid) Related Search:

MK8245 MK-8722 MK 0557 b-Alanine, N-[4-[(1S)-1-[3-(3,5-dichlorophenyl)-5-(6-methoxy-2-naphthalenyl)-1H-pyrazol-1-yl]ethyl]benzoyl]- 2-chloro-6-(1-piperazinyl)pyrazine monohydrochloride

DC-Y13-27

1of2

(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 1268882-43-4