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Home> Encyclopedia >Pharmaceutical Intermediates>Agrochemicals>Organic Intermediate
Quinazoline structure
Quinazoline structure

Quinazoline

Iupac Name:quinazoline
CAS No.: 253-82-7
Molecular Weight:130.14664
Modify Date.: 2022-11-29 08:41
Introduction: Used as an anti-malarial agent and in cancer treatment. View more+
1. Names and Identifiers
1.1 Name
Quinazoline
1.2 Synonyms

1,3-Benzodiazine 1,3-Benzodiazine, Benzopyrimidine 1,3-Diazanaphthalene 4.5-Benzopyrimidine 5,6-Benzopyrimidine Benzo(e)pyrimidine Benzo[a]pyrimidine Benzo[d]pyrimidine Benzopyrimidine EINECS 205-965-3 MFCD00006712 NSC 72372 Phenmiazine

1.3 CAS No.
253-82-7
1.4 CID
9210
1.5 EINECS(EC#)
205-965-3
1.6 Molecular Formula
C8H6N2 (isomer)
1.7 Inchi
InChI=1S/C8H6N2/c1-2-4-8-7(3-1)5-9-6-10-8/h1-6H
1.8 InChkey
JWVCLYRUEFBMGU-UHFFFAOYSA-N
1.9 Canonical Smiles
C1=CC=C2C(=C1)C=NC=N2
1.10 Isomers Smiles
C1=CC=C2C(=C1)C=NC=N2
2. Properties
2.1 Density
1.183
2.1 Melting point
45-48℃
2.1 Boiling point
243℃
2.1 Refractive index
1.653
2.1 Flash Point
106℃
2.1 Precise Quality
130.05300
2.1 PSA
25.78000
2.1 logP
1.62980
2.1 Solubility
H2O: freely soluble
2.2 Appearance
light yellow crystals
2.3 Storage
Ambient temperatures.
2.4 Chemical Properties
Beige to brownish crystalline powder
2.5 Color/Form
Yellow to beige to brownish
2.6 pKa
3.43(at 20℃)
2.7 Water Solubility
Soluble
2.8 Stability
Stable under normal temperatures and pressures.
2.9 StorageTemp
Store in a tightly closed container. Store in a cool, dry area away from incompatible substances.
3. Use and Manufacturing
3.1 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ChEBI: A mancude organic heterobicyclic parent that is naphthalene in which the carbon atoms at positions 1 and 3 have been replaced by nitrogen atoms.
3.2 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.] Quinazoline Preparation Products And Raw materials Preparation Products
3.3 Usage
Used as an anti-malarial agent and in cancer treatment.
4. Safety and Handling
4.1 Hazard Codes
Xi
4.1 Risk Statements
R36/37/38
4.1 Safety Statements
S22;S24/25
4.1 Hazard Declaration
H315
4.1 RIDADR
25kg
4.1 Caution Statement
P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501
4.1 WGK Germany
3
4.1 Specification

The Quinazoline, with the CAS registry number 253-82-7 and EINECS registry number 205-965-3, is also called 1,3-diazanaphthalene. It belongs to the product category of Pyrimidine. And the molecular formula of the chemical is C8H6N2.

The characteristics of this chemical are as followings: (1)ACD/LogP: 1.00; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 0.996; (4)ACD/LogD (pH 7.4): 1; (5)ACD/BCF (pH 5.5): 3.359; (6)ACD/BCF (pH 7.4): 3.388; (7)ACD/KOC (pH 5.5): 82.654; (8)ACD/KOC (pH 7.4): 83.359; (9)#H bond acceptors: 2; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 0; (12)Polar Surface Area: 25.78 Å2; (13)Index of Refraction: 1.653; (14)Molar Refractivity: 40.278 cm3; (15)Molar Volume: 109.997 cm3; (16)Polarizability: 15.967×10-24cm3; (17)Surface Tension: 54.891 dyne/cm; (18)Density: 1.183 g/cm3; (19)Flash Point: 106.667 °C; (20)Enthalpy of Vaporization: 45.94 kJ/mol; (21)Boiling Point: 241.845 °C at 760 mmHg; (22)Vapour Pressure: 0.055 mmHg at 25°C.

You should be cautious while dealing with this chemical. It irritates to eyes, respiratory system and skin. Therefore, you had better take the following instructions: Do not breathe dust; Avoid contact with skin and eyes; Wear suitable protective clothing. And if in case of contacting with eyes, rinse immediately with plenty of water and seek medical advice.

Addtionally, the following datas could be converted into the molecular structure:
(1)SMILES: c1ccc2c(c1)cncn2
(2)InChI: InChI=1/C8H6N2/c1-2-4-8-7(3-1)5-9-6-10-8/h1-6H
(3)InChIKey: JWVCLYRUEFBMGU-UHFFFAOYAV

5. MSDS

2.Hazard identification

2.1 Classification of the substance or mixture

no data available

2.2 GHS label elements, including precautionary statements

Pictogram(s) no data available
Signal word

no data available

Hazard statement(s)

no data available

Precautionary statement(s)
Prevention

no data available

Response

no data available

Storage

no data available

Disposal

no data available

2.3 Other hazards which do not result in classification

no data available

9. Other Information
9.0 Mesh Entry Terms
Quinazoline
9.1 Usage
Anti-malarial agent
10. Computational chemical data
  • Molecular Weight: 130.14664g/mol
  • Molecular Formula: C8H6N2
  • Compound Is Canonicalized: True
  • XLogP3-AA: null
  • Exact Mass: 130.053098200
  • Monoisotopic Mass: 130.053098200
  • Complexity: 114
  • Rotatable Bond Count: 0
  • Hydrogen Bond Donor Count: 0
  • Hydrogen Bond Acceptor Count: 2
  • Topological Polar Surface Area: 25.8
  • Heavy Atom Count: 10
  • Defined Atom Stereocenter Count: 0
  • Undefined Atom Stereocenter Count: 0
  • Defined Bond Stereocenter Count: 0
  • Undefined Bond Stereocenter Count: 0
  • Isotope Atom Count: 0
  • Covalently-Bonded Unit Count: 1
  • CACTVS Substructure Key Fingerprint: AAADcYBzAAAAAAAAAAAAAAAAAAAAAAAAAAA8QAAAAAAAAACx8AAAHAAAAAAADAjBHgQ90PYIEACgAzRnZACCgCkxAqAJ2CA4ZJiIKKLA2dGEJAhogAJIyCcQgAAOAAAAAAACAAAAAAAAAAQAAAAAAAAAAA==
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