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4-CHLORO-8-METHYLQUINAZOLINE

Product Name
4-CHLORO-8-METHYLQUINAZOLINE
CAS No.
58421-80-0
Chemical Name
4-CHLORO-8-METHYLQUINAZOLINE
Synonyms
4-CHLORO-8-METHYLQUINAZOLINE;Quinazoline, 4-chloro-8-methyl-
CBNumber
CB0100342
Molecular Formula
C9H7ClN2
Formula Weight
178.62
MOL File
58421-80-0.mol
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4-CHLORO-8-METHYLQUINAZOLINE Property

Melting point:
129-130 °C
Boiling point:
298.2±20.0 °C(Predicted)
Density 
1.292
storage temp. 
under inert gas (nitrogen or Argon) at 2-8°C
pka
1.06±0.30(Predicted)
form 
solid
color 
Light yellow to yellow
InChI
InChI=1S/C9H7ClN2/c1-6-3-2-4-7-8(6)11-5-12-9(7)10/h2-5H,1H3
InChIKey
UTBDPFFXKANFFT-UHFFFAOYSA-N
SMILES
N1=C2C(C=CC=C2C)=C(Cl)N=C1
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Safety

Risk Statements 
36
Safety Statements 
26
WGK Germany 
WGK 3
HS Code 
2933998090
Storage Class
11 - Combustible Solids
Hazard Classifications
Acute Tox. 4 Oral
Eye Irrit. 2
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

H319Causes serious eye irritation

Precautionary statements

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

AstaTech
Product number
31342
Product name
4-CHLORO-8-METHYL-QUINAZOLINE
Purity
97%
Packaging
1G
Price
$54
Updated
2026/04/30
AstaTech
Product number
31342
Product name
4-CHLORO-8-METHYL-QUINAZOLINE
Purity
97%
Packaging
5G
Price
$184
Updated
2026/04/30
AstaTech
Product number
31342
Product name
4-CHLORO-8-METHYL-QUINAZOLINE
Purity
97%
Packaging
10G
Price
$349
Updated
2026/04/30
TRC
Product number
C602108
Product name
4-Chloro-8-methylquinazoline
Packaging
100mg
Price
$45
Updated
2021/12/16
TRC
Product number
C602108
Product name
4-Chloro-8-methylquinazoline
Packaging
500mg
Price
$200
Updated
2021/12/16
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4-CHLORO-8-METHYLQUINAZOLINE Chemical Properties,Usage,Production

Synthesis

19181-54-5

58421-80-0

General procedure for the synthesis of 4-chloro-8-methylquinazoline from 8-methyl-4-quinazolone: Phosphorus oxychloride (800 mL) was added to a 2 L round-bottomed flask under nitrogen protection. Subsequently, 8-methylquinazolin-4(3H)-one (125 g) was added in batches. The reaction mixture was heated to 120 °C and refluxed for 12 hours. The reaction process was monitored by thin layer chromatography (TLC) and liquid chromatography-mass spectrometry (LCMS). Upon completion of the reaction, the mixture was cooled to room temperature and evaporated to dryness under reduced pressure. The resulting residue was dissolved in dichloromethane (DCM, 500 mL) and quenched by slow pouring into a pre-cooled saturated potassium carbonate (K2CO3) solution under continuous stirring. The organic layer was separated, washed with brine, dried over anhydrous sodium sulfate, and subsequently concentrated under vacuum to afford 4-chloro-8-methylquinazoline (120 g, 86% yield) as a yellow solid. The product could be used for subsequent reactions without further purification. Mass spectrometry (MS) data: m/z = 179/181 [M + H]+.

References

[1] Patent: WO2017/106607, 2017, A1. Location in patent: Paragraph 00224
[2] Synthetic Communications, 2011, vol. 41, # 24, p. 3644 - 3653
[3] Patent: WO2013/106756, 2013, A2. Location in patent: Page/Page column 40
[4] Patent: US9822108, 2017, B2. Location in patent: Page/Page column 42
[5] Bioorganic and Medicinal Chemistry, 1996, vol. 4, # 8, p. 1203 - 1207

4-CHLORO-8-METHYLQUINAZOLINE Preparation Products And Raw materials

Raw materials

Preparation Products

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4-CHLORO-8-METHYLQUINAZOLINE Suppliers

Energy Chemical
Tel
021-021-58432009 400-005-6266
Fax
021-58436166
Email
sales8178@energy-chemical.com
Country
China
ProdList
44802
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61
Wuhan Chemwish Technology Co., Ltd
Tel
86-027-67849912
Fax
86-027-87531808
Email
sales@chemwish.com
Country
China
ProdList
35896
Advantage
56
Accela ChemBio Co.,Ltd.
Tel
021-50795510 4000665055
Fax
021-50795055
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marketing@accelachem.com
Country
China
ProdList
10977
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64
Shanghai Jian Chao Chemical Technology Co., Ltd.
Tel
150-2103-5486 18017383231
Fax
qq:2817624287
Email
983544897@qq.com
Country
China
ProdList
9341
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55
9ding chemical ( Shanghai) Limited
Tel
4009209199
Fax
86-021-52271987
Email
sales@9dingchem.com
Country
China
ProdList
18209
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56
Amatek Scientific Co. Ltd.
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0512-56316828 4008675858
Fax
+86-512-56316826
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sales@amateksci.com
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China
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Bide Pharmatech Ltd.
Tel
400-400-164-7117 18317119277
Fax
+86-21-61629029
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product02@bidepharm.com
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China
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Nantong Bosu Pharmaceutical Technology Co., Ltd.
Tel
15962844273
Fax
0513-51005092
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tashiyxy@163.com
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China
ProdList
976
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58
ShangHai AmK Pharmaceutical Technology Co., Ltd.
Tel
微信 17321281695 18019252918
Fax
17321281695
Email
sale@amkchem.com
Country
China
ProdList
14996
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55
Tianjin Anhao Biological Technology Co., Ltd.
Tel
Email
sales@ahpharmatech.com
Country
China
ProdList
5734
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55
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View Lastest Price from 4-CHLORO-8-METHYLQUINAZOLINE manufacturers

Shaanxi Dideu New Materials Co. Ltd
Product
4-CHLORO-8-METHYLQUINAZOLINE 58421-80-0
Price
US $0.00-0.00/KG
Min. Order
1KG
Purity
98.0%
Supply Ability
10000KGS
Release date
2025-03-28