ChemicalBook >> CAS DataBase List >>6H-Purin-6-one, 2-amino-1,9-dihydro-9-[(1R,3S,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]-

6H-Purin-6-one, 2-amino-1,9-dihydro-9-[(1R,3S,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]-

6H-Purin-6-one, 2-amino-1,9-dihydro-9-[(1R,3S,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]- structure

CAS No.: 188399-46-4

Chemical Name:: 6H-Purin-6-one, 2-amino-1,9-dihydro-9-[(1R,3S,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]-

Synonyms: ent-Entecavir;(1R,3S,4R)-Entecavir;Entecavir enantiomer;enantiomer ENANTIOMER F;Entecavir EP Impurity 7;Entecavir (R,S,R)-Isomer;Entecavir corresponding isomer;Entecavir Enantiomer (1R,3S,4R);(1R, 3S, 4R)-ent-Entecavir Monohydrate;Benzenepropanoicacid,3-methyl-β-oxo-,ethylester

CBNumber:: CB92533912

Molecular Formula:: C12H15N5O3

Molecular Weight:: 277.28

MDL Number:: MFCD16660347

MOL File:: 188399-46-4.mol

MSDS File:: SDS

Last updated:2026-04-20 17:00:22

Product description	Number	Pack Size	Price
2-Amino-9-((1R,3S,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl)-1H-purin-6(9H)-one 95%	AA002GS0	100mg	$2694
2-Amino-9-((1R,3S,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl)-1H-purin-6(9H)-one 95%	AA002GS0	250mg	$3842
2-Amino-9-((1R,3S,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl)-1H-purin-6(9H)-one 95%	CM237166	100mg	$1248
Entecavir Enantiomer	DC39827	50mg	$1100
ent-Entecavir 98%	4969	1mg	$249
More product size

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6H-Purin-6-one, 2-amino-1,9-dihydro-9-[(1R,3S,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]- Properties

Melting point	>239°C (dec.)
Density	1.81
storage temp.	Hygroscopic, -20°C Freezer, Under inert atmosphere
solubility	DMSO (Slightly), Methanol (Slightly)
form	Solid
pka	9+-.0.20(Predicted)
color	White to Off-White
InChI	InChI=1S/C12H15N5O3/c1-5-6(3-18)8(19)2-7(5)17-4-14-9-10(17)15-12(13)16-11(9)20/h4,6-8,18-19H,1-3H2,(H3,13,15,16,20)/t6-,7-,8-/m1/s1
InChIKey	QDGZDCVAUDNJFG-BWZBUEFSSA-N
SMILES	N1C2=C(N=C(N)NC2=O)N([C@@H]2C[C@@H](O)[C@H](CO)C2=C)C=1

6H-Purin-6-one, 2-amino-1,9-dihydro-9-[(1R,3S,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]- price More Price(13)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
aablocks	AA002GS0	2-Amino-9-((1R,3S,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl)-1H-purin-6(9H)-one 95%	188399-46-4	100mg	$2694	2026-05-28	Buy
aablocks	AA002GS0	2-Amino-9-((1R,3S,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl)-1H-purin-6(9H)-one 95%	188399-46-4	250mg	$3842	2026-05-28	Buy
Chemenu	CM237166	2-Amino-9-((1R,3S,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl)-1H-purin-6(9H)-one 95%	188399-46-4	100mg	$1248	2026-05-26	Buy
DC Chemicals	DC39827	Entecavir Enantiomer	188399-46-4	50mg	$1100	2026-05-24	Buy
AvaChem	4969	ent-Entecavir 98%	188399-46-4	1mg	$249	2026-05-22	Buy

Product number	Packaging	Price	Buy
AA002GS0	100mg	$2694	Buy
AA002GS0	250mg	$3842	Buy
CM237166	100mg	$1248	Buy
DC39827	50mg	$1100	Buy
4969	1mg	$249	Buy

6H-Purin-6-one, 2-amino-1,9-dihydro-9-[(1R,3S,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]- Chemical Properties,Uses,Production

Chemical Properties

White Solid

Uses

ent-Entecavir is an enantiomeric impurity of the antiviral drug Entecavir (E558900).

6H-Purin-6-one, 2-amino-1,9-dihydro-9-[(1R,3S,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]- Preparation Products And Raw materials

Raw materials

Preparation Products

6H-Purin-6-one, 2-amino-1,9-dihydro-9-[(1R,3S,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]- Suppliers

Global( 93)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Capot Chemical Co.,Ltd.	+8613336195806	sales@capot.com	China	29640	60
Lianyungang happen teng technology co., LTD	15950718863	wang666xt@163.com	CHINA	295	58
Standardpharm Co. Ltd.	86-714-3992388	overseasales1@yongstandards.com	United States	14332	58
CONIER CHEM AND PHARMA LIMITED	+8618523575427	sales@conier.com	China	49979	58
career henan chemical co	+86-0371-86658258 +8613203830695	factory@coreychem.com	China	29792	58
Career Henan Chemica Co	+86-0371-86658258 +8613203830695	laboratory@coreychem.com	China	30225	58
ANHUI WITOP BIOTECH CO., LTD	+8615255079626	eric@witopchemical.com	China	23541	58
BOC Sciences	16314854226; +16314854226	inquiry@bocsci.com	United States	19853	58
CR Corporation Limited	+8613062833949	fred.wen@crcorporation.cn	China	8645	58
NewCan Biotech Limited	+86-571-86912261 19975279805	sales@newcanbio.com	China	9985	58

Supplier	Advantage
Capot Chemical Co.,Ltd.	60
Lianyungang happen teng technology co., LTD	58
Standardpharm Co. Ltd.	58
CONIER CHEM AND PHARMA LIMITED	58
career henan chemical co	58
Career Henan Chemica Co	58
ANHUI WITOP BIOTECH CO., LTD	58
BOC Sciences	58
CR Corporation Limited	58
NewCan Biotech Limited	58

View Lastest Price from 6H-Purin-6-one, 2-amino-1,9-dihydro-9-[(1R,3S,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]- manufacturers

Image	Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
	2026-04-20	ent-Entecavir 188399-46-4	$2120.00-3700.00			10g	TargetMol Chemicals Inc.
	2020-01-05	6H-Purin-6-one, 2-amino-1,9-dihydro-9-[(1R,3S,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]- 188399-46-4	$9.80	1g	≥99%	100kg	Career Henan Chemical Co

ent-Entecavir
188399-46-4
$2120.00-3700.00
TargetMol Chemicals Inc.

6H-Purin-6-one, 2-amino-1,9-dihydro-9-[(1R,3S,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]-
188399-46-4
$9.80
≥99%
Career Henan Chemical Co

188399-46-4(6H-Purin-6-one, 2-amino-1,9-dihydro-9-[(1R,3S,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]-)Related Search:

(1S,2S,3S,5S)-5-(2-Amino-6-(benzyloxy)-9H-purin-9-yl)-3-(benzyloxy)-2-(benzyloxymethyl)cyclopentanol (2R,3S,5S)-3-(Benzyloxy)-5-[2-[[(4-methoxyphenyl)diphenylmethyl]amino]-6-(benzyloxy)-9H-purin-9-yl]-2-(benzyloxymethyl)cyclopentanone (2R,3S,5S)-3-(Benzyloxy)-5-[2-[[(4-methoxyphenyl)diphenylmethyl]amino]-6-(phenylmethoxy)-9H-purin-9-yl]-2-(benzyloxymethyl)cyclopentanol 6-O-Benzyl-4-dehydroxy-4-diMethylphenylsilyl Entecavir 2-amino-9-((1R,3R,4S)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl)-1,9-dihydro-6H-purin-6-one hydrate

IRBESARTAN RELATED COMPOUND A (25 MG) (1-PENTANOYLAMINO-CYCLOPENTANECARBOXYLIC ACID [2'-(1H-TETRAZOL-5-YL)-BIPHENYL-4-YLMETHYL]-AMIDE) EnzalutaMide IMpurity (1S,3S,4R)-Entecavir (1S, 2R)-2-(Benzyloxymethyl)-1-hydroxy-3-cyclopentene 2-amino-9-((1S,3S,4S)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl)-1,9-dihydro-6H-purin-6-one

Entecavir Impurity Entecavir Impurity 5 (1R,3R,4R)-Entecavir 2-Amino-1,9-dihydro-9-[(1S,3R,4S)-4-(benzyloxy)-3-(benzyloxymethyl)-2-methylenecyclopentyl]-6H-purin-6-one 2-AMino-1,9-dihydro-9-[(1S,3R,4S)-4-(hydroxydiMethylsilyl)-3-(hydroxyMethyl)-2-Methylenecyclopentyl]-6H-purin-6-one

6-(Benzyloxy)-9-((1S,3S)-4-(benzyloxy)-3-((benzyloxy)methyl)-2-methylenecyclopentyl)-N-((4-methoxyphenyl)diphenylmethyl)-9H-purin-2-amine (1'S,3'S,4'S)-Entecavir IsoMer Entecavir

1of4

[1R-(1α,3α,4β)]-2-AMino-1,9-dihydro-9-[4-hydroxy-3-(hydroxyMethyl)-2-Methylenecyclopentyl]-6H-purin-6-one 6H-Purin-6-one, 2-amino-1,9-dihydro-9-[(1R,3S,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]- 2-Amino-1,9-dihydro-9-[(1R,3S,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]-6H-purin-6-one 2-amino-9-[(1R,3S,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylidenecyclopentyl]-3H-purin-6-one enantiomer ENANTIOMER F Entecavir impurity 4/(1R,3S,4R)-Entecavir/2-amino-9-((1R,3S,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl)-1,9-dihydro-6H-purin-6-one ent-Entecavir 2-Amino-9-((1R,3S,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl)-1H-purin-6(9H)-one Entecavir Enantiomer (1R,3S,4R) 2-amino-9-((1R,3S,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl)-1,9-dihydro-6H-purin-6-one (1R,3S,4R)-Entecavir Entecavir enantiomer (1R, 3S, 4R)-ent-Entecavir Monohydrate 1R-(1α,3α,4β)]-2-AMino-1,9-dihydro-9-[4-hydroxy-3-(hydroxyMethyl)-2-Methylenecyclopentyl]-6H-purin-6-one Benzenepropanoicacid,3-methyl-β-oxo-,ethylester Entecavir (R,S,R)-Isomer Entecavir corresponding isomer Entecavir EP Impurity 7 188399-46-4