一二三四区视频,亚洲少妇熟女色,日本久热无码视频网,欧美国产日韩大尺度,亚洲a视频,久久少妇一区二区,日韩999无码视频,刺激久久久久久久,啊啊啊啊不要啊在线

ChemicalBook >> CAS DataBase List >>Quinazoline

Quinazoline

CAS No.
253-82-7
Chemical Name:
Quinazoline
Synonyms
PHENMIAZINE;1,3-BENZODIAZINE;5,6-Benzopyrimidine;QUINAZOLINE;Benzopyrimidine;Quinazoline 99%;Quinazoline >Quinazoline ,98%;Benzo[d]pyrimidine;benzo[a]pyrimidine
CBNumber:
CB8181293
Molecular Formula:
C8H6N2
Molecular Weight:
130.15
MDL Number:
MFCD00006712
MOL File:
253-82-7.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-28 03:52:47
Product description Number Pack Size Price
Quinazoline 99% 123323 1g $80.6
Quinazoline 99% 123323 5g $260
Quinazoline >98.0%(GC)(T) Q0055 1g $188
Quinazoline Asreported 288539 1g $322
Quinazoline Asreported 288539 2g $438
More product size

Quinazoline Properties

Melting point 46-48 °C (lit.)
Boiling point 243 °C (lit.)
Density 1.2002 (rough estimate)
refractive index 1.6231 (estimate)
Flash point 224 °F
storage temp. Sealed in dry,Room Temperature
solubility H2O: freely soluble
pka 3.43(at 20℃)
form Crystalline Powder, Crystals and/or Chunks
color Yellow to beige to brownish
Water Solubility H2O: freely soluble
organic solvents: soluble
Merck 14,8053
BRN 109370
InChI 1S/C8H6N2/c1-2-4-8-7(3-1)5-9-6-10-8/h1-6H
InChIKey JWVCLYRUEFBMGU-UHFFFAOYSA-N
SMILES c1ccc2ncncc2c1
CAS DataBase Reference 253-82-7(CAS DataBase Reference)
FDA UNII UB9QUR18NL
NIST Chemistry Reference Quinazoline(253-82-7)
EPA Substance Registry System Quinazoline (253-82-7)
UNSPSC Code 12352100
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P271-P280
PPE Eyeshields, Gloves, type N95 (US)
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  22-24/25-36-26-23
WGK Germany  3
HS Code  29339900
Storage Class 11 - Combustible Solids
NFPA 704
1
0 0

Quinazoline price More Price(82)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 123323 Quinazoline 99% 253-82-7 1g $80.6 2026-04-30 Buy
Sigma-Aldrich 123323 Quinazoline 99% 253-82-7 5g $260 2026-04-30 Buy
TCI Chemical Q0055 Quinazoline >98.0%(GC)(T) 253-82-7 1g $188 2026-04-30 Buy
Usbiological 288539 Quinazoline Asreported 253-82-7 1g $322 2026-06-03 Buy
Usbiological 288539 Quinazoline Asreported 253-82-7 2g $438 2026-06-03 Buy
Product number Packaging Price Buy
123323 1g $80.6 Buy
123323 5g $260 Buy
Q0055 1g $188 Buy
288539 1g $322 Buy
288539 2g $438 Buy

Quinazoline Chemical Properties,Uses,Production

Chemical Properties

Beige to brownish crystalline powder

Uses

Quinazoline was used to study the electrochemical behaviour of quinazoline using modern polarographic and voltammetric methods. It is the basic structural unit of pharmaceuticals and plays an important role in modern synthesis of antitumor drugs.

Definition

ChEBI: A mancude organic heterobicyclic parent that is naphthalene in which the carbon atoms at positions 1 and 3 have been replaced by nitrogen atoms.

General Description

Quinazolines has applications in medicinal chemistry due to their antibacterial, antifungal, anticonvulsant, anti-inflammatory and antitumor activities. It is the basic structural unit of pharmaceuticals and plays an important role in modern synthesis of antitumor drugs.

Biochem/physiol Actions

Genotoxicity of quinazoline was established by bacterial SOS Chromotest (Escherichia Coli).

Synthesis

4-Chloroquinazoline

5190-68-1

Quinazoline

253-82-7

The general method for the synthesis of quinazoline from 4-chloroquinazoline was as follows: first, the halogenated heterocycle (0.66 mmol) was dissolved in anhydrous THF (13.2 mL) and degassed by drumming argon gas for several minutes. Subsequently, PdCl2 (dppf) (27.0 mg, 0.033 mmol, 5.0 mol%), TMEDA (0.130 g, 1.12 mmol, 1.7 equiv), and NaBH4 (42.4 mg, 1.12 mmol, 1.7 equiv) were added sequentially. The reaction mixture was stirred at room temperature for an appropriate time under argon protection, after which it was post-treated according to standard methods.

Purification Methods

Purify quinazoline by passage through an activated alumina column in *C6H6 or pet ether (b 40-60o). Distil it under reduced pressure, sublime it under vacuum and crystallise it from pet ether. The picrate has m 188-189o (from MeOH). [Armarego J Appl Chem 11 70 1961, Armarego Quinazolines, Fused Pyrimidines Part I Brown Ed, Wiley-Interscience 1967, Brown Quinazolines Supplement I Taylor Ed, Wiley-Interscience 1996, ISBN 0-471-14565-3; for covalent hydration see Albert & Armarego Adv Heterocycl Chem 4 1 1965, Beilstein 23 H 175, 23 II 177, 23 III/IV 1221.]

References

[1] Journal of Molecular Catalysis A: Chemical, 2014, vol. 393, p. 191 - 209

1904-65-0
253-82-7
Synthesis of Quinazoline from 2,3,4,5-TETRAHYDRO-1H-BENZO[E][1,4]DIAZEPINE
Global( 170)Suppliers
Supplier Tel Email Country ProdList Advantage
Capot Chemical Co.,Ltd.
+86-(0)57185586718 +86-13336195806 sales@capot.com China 29640 60
Fluoropharm Co., Ltd.
+86-0571-85586753 +86-13336034509 sales@fluoropharm.com China 1445 60
ATK CHEMICAL COMPANY LIMITED
+undefined-21-51877795 ivan@atkchemical.com China 33024 60
career henan chemical co
+86-0371-86658258 +8613203830695 sales@coreychem.com China 29815 58
Alchem Pharmtech,Inc.
8485655694 sales@alchempharmtech.com United States 63687 58
CONIER CHEM AND PHARMA LIMITED
+8618523575427 sales@conier.com China 49979 58
Guangzhou Yuheng Pharmaceutical Technology Co., Ltd
+8613580539051 joe@yuhengpharm.com CHINA 21142 58
Hefei TNJ Chemical Industry Co.,Ltd.
+86-0551-65418671 +8618949823763 sales@tnjchem.com China 34563 58
Shaanxi Dideu Medichem Co. Ltd
+86-029-89586680 +86-18192503167 1026@dideu.com China 9996 58
Dayang Chem (Hangzhou) Co.,Ltd.
+86-0571-88938639 +8617705817739 info@dycnchem.com China 52705 58

View Lastest Price from Quinazoline manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Quinazoline pictures 2019-07-06 Quinazoline
253-82-7
$98.00 1KG 98% 100KG Career Henan Chemical Co
1,3-Diazanaphthalene 4.5-Benzopyrimidine Benzo(e)pyrimidine 1,3-Benzodiazine, Benzopyrimidine Quinazoline ,98% Benzo[d]pyrimidine Benzopyrimidine Quinazoline (6CI,8CI,9CI) benzo[a]pyrimidine Quinazoline 99% QUINAZOLINE Quinazoline > 5,6-Benzopyrimidine PHENMIAZINE 1,3-BENZODIAZINE quinazoline - [Q22663] 253-82-7 Heterocyclic Building Blocks Building Blocks Quinazolines PYRIMIDINE
阿巴嘎旗| 沾益县| 柳林县| 偃师市| 齐河县| 辉南县| 习水县| 时尚| 奉新县| 临夏市| 达州市| 庐江县| 民和| 清徐县| 新宁县| 三原县| 容城县| 新巴尔虎右旗| 台北县| 金昌市| 嵩明县| 盐津县| 龙门县| 股票| 久治县| 马山县| 吉隆县| 南阳市| 阿荣旗| 江口县| 龙江县| 织金县| 阿巴嘎旗| 南充市| 东阳市| 额敏县| 南雄市| 葵青区| 开原市| 会昌县| 施秉县|