ChemicalBook >> CAS DataBase List >>4'-chloro-7H-4,7'-bipyrrolo[2,3-d]pyrimidine

4'-chloro-7H-4,7'-bipyrrolo[2,3-d]pyrimidine

4'-chloro-7H-4,7'-bipyrrolo[2,3-d]pyrimidine structure

CAS No.: 134965-85-8

Chemical Name:: 4'-chloro-7H-4,7'-bipyrrolo[2,3-d]pyrimidine

Synonyms: Tofacitinib-27;Tofatinib impurity 28;Tofatinib Impurity 14;Baritinib Impurity 33;Tofacitinib impurities;Baricitinib Impurity 33;Azilsartan medoxomil impurity330;4'-chloro-7H-4,7'-bipyrrolo[2,3-d]pyrimidine;4'-Chloro-4,7'-bi-7H-pyrrolo[2,3-d]pyrimidine;4,7'-Bi-7H-pyrrolo[2,3-d]pyrimidine, 4'-chloro-

CBNumber:: CB83311149

Molecular Formula:: C12H7ClN6

Molecular Weight:: 270.68

MDL Number:: MFCD31925059

MOL File:: 134965-85-8.mol

MSDS File:: SDS

Last updated:2026-05-28 05:38:02

Request For Quotation

4'-chloro-7H-4,7'-bipyrrolo[2,3-d]pyrimidine Properties

Boiling point	397.4±52.0 °C(Predicted)
Density	1.74±0.1 g/cm3(Predicted)
storage temp.	-20°C, sealed storage, away from moisture
pka	10.39±0.20(Predicted)
Appearance	Off-white to light yellow Solid

SAFETY

Risk and Safety Statements

Symbol(GHS)	GHS07
Signal word	Warning
Hazard statements	H315-H335-H302-H319
Precautionary statements	P264-P280-P305+P351+P338-P337+P313P-P264-P280-P302+P352-P321-P332+P313-P362-P264-P270-P301+P312-P330-P501

4'-chloro-7H-4,7'-bipyrrolo[2,3-d]pyrimidine price

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
aablocks	AA01KY42	4'-Chloro-7H-4,7'-bipyrrolo[2,3-d]pyrimidine 95%	134965-85-8	100mg	$318	2026-05-30	Buy
aablocks	AA01KY42	4'-Chloro-7H-4,7'-bipyrrolo[2,3-d]pyrimidine 95%	134965-85-8	250mg	$618	2026-05-30	Buy
aablocks	AA01KY42	4'-Chloro-7H-4,7'-bipyrrolo[2,3-d]pyrimidine 95%	134965-85-8	1g	$1853	2026-05-30	Buy
ACHEMBLOCK	S80844	4-chloro-7-{7H-pyrrolo[2,3-d]pyrimidin-4-yl}-7H-pyrrolo[2,3-d]pyrimidine 97%	134965-85-8	250MG	$835	2026-05-27	Buy
ACHEMBLOCK	S80844	4-chloro-7-{7H-pyrrolo[2,3-d]pyrimidin-4-yl}-7H-pyrrolo[2,3-d]pyrimidine 97%	134965-85-8	1G	$2260	2026-05-27	Buy

Product number	Packaging	Price	Buy
AA01KY42	100mg	$318	Buy
AA01KY42	250mg	$618	Buy
AA01KY42	1g	$1853	Buy
S80844	250MG	$835	Buy
S80844	1G	$2260	Buy

4'-chloro-7H-4,7'-bipyrrolo[2,3-d]pyrimidine Chemical Properties, Uses, Production

Uses

4'-chloro-7H-4,7h'-pyrrolo[2,3-d]pyrimidine is a Baricitinib and tofacitinib impurity reference substance. It could be used for new drug research and experimental use.

4'-chloro-7H-4,7'-bipyrrolo[2,3-d]pyrimidine Preparation Products And Raw materials

Raw materials

Preparation Products

4'-chloro-7H-4,7'-bipyrrolo[2,3-d]pyrimidine Suppliers

Global Suppliers ( 58)

Supplier	Tel	Email	Country	ProdList	Advantage
Wuhan ariel chemical Co., LTD.	18986259541 18986259541	sales@3stc.com	China	3828	58
S.Z. PhyStandard Bio-Tech. Co., Ltd.	0755-4000505016 13380397412	3001272453@qq.com	China	5000	50
Quality Control Solutions Ltd.	0755-66853366 13670046396	orders@qcsrm.com	China	18188	56
Wuxi Zhongkun Biochemical Technology Co., Ltd.	0510-85629785 18013409632;	sales@reading-chemicals.com	China	15165	58
Amadis Chemical Company Limited	571-89925085	sales@amadischem.com	China	131885	58
Hubei Yangxin Medical Technology Co., Ltd.	15374522761	3003392093@yongstandards.com	China	9995	55
LinkChem Technology Co., Ltd.	021-58950110 13124863828	sales@linkchem.cn	China	2994	58
Shanghai Zhen Li Biological Technology Co., Ltd	021-16621358918; 18516310516;16621358918;13045646768	zhenlipharma888@163.com	China	19060	58
Aikon International Limited	025-58859352 13913916777	dt3@aikonchem.com	China	15490	58
Zhengzhou Kangshan Biological Co., Ltd.	+86-0371-55023472 13663848272	2584787837@qq.com	China	238	58

Supplier	Advantage
Wuhan ariel chemical Co., LTD.	58
S.Z. PhyStandard Bio-Tech. Co., Ltd.	50
Quality Control Solutions Ltd.	56
Wuxi Zhongkun Biochemical Technology Co., Ltd.	58
Amadis Chemical Company Limited	58
Hubei Yangxin Medical Technology Co., Ltd.	55
LinkChem Technology Co., Ltd.	58
Shanghai Zhen Li Biological Technology Co., Ltd	58
Aikon International Limited	58
Zhengzhou Kangshan Biological Co., Ltd.	58

View Latest Price from 4'-chloro-7H-4,7'-bipyrrolo[2,3-d]pyrimidine manufacturers

Update time	Product	Min. Order	Purity	Supply Ability	Manufacturer
2026-03-12	Baricitinib Impurity 33 134965-85-8	10mg	0.98	5g	ShenZhen H&D Pharmaceutical Technology Co., LTD
2026-03-12	Baricitinib Impurity 33 134965-85-8	10mg	0.98	10g	ShenZhen H&D Pharmaceutical Technology Co., LTD
2026-03-12	Baricitinib Impurity 33 134965-85-8	10mg	0.98	10g	ShenZhen H&D Pharmaceutical Technology Co., LTD

Baricitinib Impurity 33
134965-85-8
$0.00
0.98
ShenZhen H&D Pharmaceutical Technology Co., LTD

Baricitinib Impurity 33
134965-85-8
0.98
ShenZhen H&D Pharmaceutical Technology Co., LTD

Baricitinib Impurity 33
134965-85-8
0.98
ShenZhen H&D Pharmaceutical Technology Co., LTD

4'-chloro-7H-4,7'-bipyrrolo[2,3-d]pyrimidine Spectrum

4'-chloro-7H-4,7'-bipyrrolo[2,3-d]pyrimidine(134965-85-8)¹HNMR

134965-85-8 (4'-chloro-7H-4,7'-bipyrrolo[2,3-d]pyrimidine) Related Search:

7H-Pyrrolo[2,3-d]pyrimidine, 4-hydrazinyl- Tofacitinib impurity T 7H-Pyrrolo[2,3-d]pyrimidin-4-amine, N-methyl-N-[(3R,4R)-4-methyl-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-3-piperidinyl]- Tofacitinib Impurity 45 Ethyl S-4-chloro-3-hydroxybutyrate

2-amino-4-fluoro-5-nitrobenzoic acid (3R,4R)-N,4-dimethyl-piperidin-3-amine (3R,4R)-3-[(6-amino-4-pyrimidinyl)methylamino]-4-methyl-β-oxo-1-Piperidinepropanenitrile (S)-N4-(3-chloro-4-fluorophenyl)-7-(tetrahydrofuran-3-yloxy)quinazoline-4,6-diaMine Tofacitinib Impurity 20

R-afatinib 6,7-Dihydro-N-methyl-N-[(3R,4R)-4-methyl-3-piperidinyl]-5H-pyrrolo[2,3-d]pyrimidin-4-amine 3-((3R,4R)-4-Methyl-3-(Methyl(7H-pyrrolo[2,3-d]pyriMidin-4-yl)aMino)piperidin-1-yl)-3-oxopropanaMide 3-((3S,4S)-4-methyl-3-(methyl(7H-pyrrolo[2,3-d]pyrimidin-4-yl)amino)piperidin-1-yl)-3-oxopropanenitrile Tofacitinib Impurity 19

3-((3R,4R)-3-((2-chloro-7H-pyrrolo[2,3-d]pyriMidin-4-yl)(Methyl)aMino)-4-Methylpiperidin-1-yl)-3-oxopropanenitrile N-((3R,4S)-1-benzyl-4-methylpiperidin-3-yl)-N-methyl-7H-pyrrolo[2,3-d]pyrimidin-4-amine (3S,4S)-1-benzyl-N,4-diMethylpiperidin-3-aMine

1of4

4'-Chloro-4,7'-bi-7H-pyrrolo[2,3-d]pyrimidine Tofacitinib impurity 21/4'-chloro-7H-4,7'-bipyrrolo[2,3-d]pyrimidine Tofacitinib-27 4,7'-Bi-7H-pyrrolo[2,3-d]pyrimidine, 4'-chloro- 4-chloro-7-{7H-pyrrolo[2,3-d]pyrimidin-4-yl}-7H-pyrrolo[2,3-d]pyrimidine Azilsartan medoxomil impurity330 Tofacitinib Related Compound 29Q: What is Tofacitinib Related Compound 29 Q: What is the CAS Number of Tofacitinib Related Compound 29 4'-Chloro-4,7'-bi-7H-pyrrolo[2,3-d]pyrimidine(Tofacitinib impurity ) Tofatinib Impurity 14 Tofatinib impurity 28 4-chloro-7-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)pyrrolo[2,3-d]pyrimidine 4'-chloro-7H-4,7'-bipyrrolo[2,3-d]pyrimidine Baricitinib Impurity 33 Baritinib Impurity 33 Tofacitinib impurities 134965-85-8