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4-CHLORO-5-METHYLTHIENO[2,3-D]PYRIMIDINE

4-CHLORO-5-METHYLTHIENO[2,3-D]PYRIMIDINE structure

CAS No.: 43088-67-1

Chemical Name:: 4-CHLORO-5-METHYLTHIENO[2,3-D]PYRIMIDINE

Synonyms: BUTTPARK 46\18-75;4-Chloro-5-Methylthieno[2...;4-CHLORO-5-METHYLTHIENO[2,3-D]PYRIMIDINE;Thieno[2,3-d]pyrimidine, 4-chloro-5-methyl-;4-Chloro-5-methylthieno[2,3-d]pyrimidine ,97%;4-CHLORO-5-METHYLTHIENO[2,3-D]PYRIMIDINE ISO 9001：2015 REACH

CBNumber:: CB6272782

Molecular Formula:: C7H5ClN2S

Molecular Weight:: 184.65

MDL Number:: MFCD00205201

MOL File:: 43088-67-1.mol

MSDS File:: SDS

Last updated:2025-10-14 17:28:33

Product description	Number	Pack Size	Price
4-Chloro-5-methylthieno[2,3-d]pyrimidine	C367648	500mg	$90
4-Chloro-5-methylthieno[2,3-d]pyrimidine	7H70-5-Z4	5G	$125
4-Chloro-5-methylthieno[2,3-d]pyrimidine	7H70-5-Z4	1g	$75
4-Chloro-5-methylthieno[2,3-d]pyrimidine	Z2853	1g	$80
4-Chloro-5-methylthieno[2,3-d]pyrimidine	FC149573	500mg	$80

Request For Quotation

4-CHLORO-5-METHYLTHIENO[2,3-D]PYRIMIDINE Properties

Melting point	137 °C
Boiling point	301.3±37.0 °C(Predicted)
Density	1.445±0.06 g/cm3(Predicted)
storage temp.	under inert gas (nitrogen or Argon) at 2-8°C
pka	0.71±0.40(Predicted)
Appearance	light pink solid

SAFETY

Risk and Safety Statements

Symbol(GHS)	GHS07
Signal word	Warning
Hazard statements	H315-H319-H335
Precautionary statements	P261-P305+P351+P338
Risk Statements	36/37/38
Safety Statements	22-36/37/39
HS Code	29349990

4-CHLORO-5-METHYLTHIENO[2,3-D]PYRIMIDINE price More Price(21)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
TRC	C367648	4-Chloro-5-methylthieno[2,3-d]pyrimidine	43088-67-1	500mg	$90	2021-12-16	Buy
SynQuest Laboratories	7H70-5-Z4	4-Chloro-5-methylthieno[2,3-d]pyrimidine	43088-67-1	5G	$125	2021-12-16	Buy
SynQuest Laboratories	7H70-5-Z4	4-Chloro-5-methylthieno[2,3-d]pyrimidine	43088-67-1	1g	$75	2021-12-16	Buy
AK Scientific	Z2853	4-Chloro-5-methylthieno[2,3-d]pyrimidine	43088-67-1	1g	$80	2021-12-16	Buy
Biosynth Carbosynth	FC149573	4-Chloro-5-methylthieno[2,3-d]pyrimidine	43088-67-1	500mg	$80	2021-12-16	Buy

Product number	Packaging	Price	Buy
C367648	500mg	$90	Buy
7H70-5-Z4	5G	$125	Buy
7H70-5-Z4	1g	$75	Buy
Z2853	1g	$80	Buy
FC149573	500mg	$80	Buy

4-CHLORO-5-METHYLTHIENO[2,3-D]PYRIMIDINE Chemical Properties,Uses,Production

Synthesis

3-METHYLTHIENO(2,3-D)PYRIMIDIN-4(5H)-ONE

43088-64-8

43088-67-1

Step 2. Preparation of 4-chloro-5-methylthieno[2,3-d]pyrimidine: 5-methylthieno[2,3-d]pyrimidin-4(3H)-one (1.4 g, 8.42 mmol) prepared in Step 1 was dissolved in phosphorochloridic acid (5 mL). Subsequently, the reaction mixture was stirred at 110°C for 1 hour. Upon completion of the reaction, the reaction mixture was slowly poured into a mixture of ice water and chloroform and washed sequentially with water and saturated aqueous sodium bicarbonate. The organic layers were combined and concentrated under reduced pressure. The residue was purified by recrystallization (hexane/ethyl acetate mixed solvent) to give 590 mg (yield: 39%) of the target product 4-chloro-5-methylthieno[2,3-d]pyrimidine as a yellow solid.1H NMR (400 MHz, CDCl3): δ 8.81 (s, 1H), 7.24 (s, 1H), 2.70 (s, 3H).

References

[1] Patent: WO2007/102679, 2007, A1. Location in patent: Page/Page column 49
[2] Bioorganic and Medicinal Chemistry Letters, 2016, vol. 26, # 6, p. 1525 - 1528

4-CHLORO-5-METHYLTHIENO[2,3-D]PYRIMIDINE synthesis

Synthesis of 4-CHLORO-5-METHYLTHIENO[2,3-D]PYRIMIDINE from 3-METHYLTHIENO(2,3-D)PYRIMIDIN-4(5H)-ONE

4-CHLORO-5-METHYLTHIENO[2,3-D]PYRIMIDINE Preparation Products And Raw materials

Raw materials

tert-Butyl acetoacetate Sulfur Ethanol Phosphorus oxitrichloride Diethylamine

Phosphorus pentachloride Hydrochloric acid Acetic acid Morpholine Ethyl cyanoacetate

Formamide

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Preparation Products

4-CHLORO-5-METHYLTHIENO[2,3-D]PYRIMIDINE Suppliers

Global( 87)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Wuhan Chemwish Technology Co., Ltd	027-67849912	sales@chemwish.com	CHINA	10821	58
CONIER CHEM AND PHARMA LIMITED	+8618523575427	sales@conier.com	China	49977	58
career henan chemical co	+86-0371-86658258 +8613203830695	factory@coreychem.com	China	29794	58
Guangzhou Yuheng Pharmaceutical Technology Co., Ltd	+8613580539051	joe@yuhengpharm.com	CHINA	21142	58
Career Henan Chemica Co	+86-0371-86658258 +8613203830695	laboratory@coreychem.com	China	30227	58
Hefei TNJ Chemical Industry Co.,Ltd.	+86-0551-65418671 +8618949823763	sales@tnjchem.com	China	34563	58
Blocksynth Pharmaceutical Technology Co.,Ltd	0086-19817745290; +8619817745290	bd@blocksynth.com	China	5973	58
Dideu Industries Group Limited	+86-29-89586680 +86-15129568250	1026@dideu.com	China	18895	58
Dayang Chem (Hangzhou) Co.,Ltd.	+86-0571-88938639 +8617705817739	info@dycnchem.com	China	52705	58
Labnetwork lnc.	+86-27-50766799 +8618062016861	contact@labnetwork.com	China	19987	58

Supplier	Advantage
Wuhan Chemwish Technology Co., Ltd	58
CONIER CHEM AND PHARMA LIMITED	58
career henan chemical co	58
Guangzhou Yuheng Pharmaceutical Technology Co., Ltd	58
Career Henan Chemica Co	58
Hefei TNJ Chemical Industry Co.,Ltd.	58
Blocksynth Pharmaceutical Technology Co.,Ltd	58
Dideu Industries Group Limited	58
Dayang Chem (Hangzhou) Co.,Ltd.	58
Labnetwork lnc.	58

View Lastest Price from 4-CHLORO-5-METHYLTHIENO[2,3-D]PYRIMIDINE manufacturers

Image	Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
	2025-11-18	4-CHLORO-5-METHYLTHIENO[2,3-D]PYRIMIDINE 43088-67-1	US $1.10 / g	1g	99.00%	100 Tons Min	Dideu Industries Group Limited
	2020-01-13	4-CHLORO-5-METHYLTHIENO[2,3-D]PYRIMIDINE 43088-67-1	US $5.00 / KG	1KG	98%	100KG	Career Henan Chemical Co

4-CHLORO-5-METHYLTHIENO[2,3-D]PYRIMIDINE
43088-67-1
US $1.10 / g
99.00%
Dideu Industries Group Limited

4-CHLORO-5-METHYLTHIENO[2,3-D]PYRIMIDINE
43088-67-1
US $5.00 / KG
98%
Career Henan Chemical Co

4-CHLORO-5-METHYLTHIENO[2,3-D]PYRIMIDINE Spectrum

4-CHLORO-5-METHYLTHIENO[2,3-D]PYRIMIDINE(43088-67-1)¹HNMR

43088-67-1(4-CHLORO-5-METHYLTHIENO[2,3-D]PYRIMIDINE)Related Search:

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4-CHLORO-2-METHYL-5,6,7,8-TETRAHYDRO[1]BENZOTHIENO[2,3-D]PYRIMIDINE 4-CHLORO-6-METHYL-2,3-DIHYDRO-1H-8-THIA-5,7-DIAZA-CYCLOPENTA[A]INDENE 5-(4-BROMOPHENYL)-4-CHLOROTHIENO[2,3-D]PYRIMIDINE

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BUTTPARK 46\18-75 4-CHLORO-5-METHYLTHIENO[2,3-D]PYRIMIDINE 4-Chloro-5-methylthieno[2,3-d]pyrimidine ,97% 4-Chloro-5-Methylthieno[2... Thieno[2,3-d]pyrimidine, 4-chloro-5-methyl- 4-CHLORO-5-METHYLTHIENO[2,3-D]PYRIMIDINE ISO 9001：2015 REACH 43088-67-1 Halides Fused Ring Systems