-
Name
1,2,4-TRIAZOLO[1,5-A]PYRIMIDINE
- EINECS
- CAS No. 275-02-5
- Article Data15
- CAS DataBase
- Density 1.48 g/cm3
- Solubility
- Melting Point 142-145 °C(lit.)
- Formula C5H4 N4
- Boiling Point °Cat760mmHg
- Molecular Weight 120.11
- Flash Point °C
- Transport Information
- Appearance
- Safety A poison by route. When heated to decomposition it emits toxic vapors of NOx.
- Risk Codes 36/37/38
-
Molecular Structure
- Hazard Symbols A poison.
- Synonyms s-Triazolo[1,5-a]pyrimidine(6CI,7CI,8CI); 1,2,4-Triazolo[1,5-a]pyrimidine; 1,3,3a,7-Tetraazaindene;1,3,3a,7-Tetrazaindene; 1,3,4-Triazaindolizine; 1-Deaza-5-azapurine;2,3-Triazolo-a-pyrimidine;[1,2,4]Triazolo[2,3-a]pyrimidine; s-Triazolo[2,3-a]pyrimidine
- PSA 43.08000
- LogP 0.12430
(1,2,4)Triazolo(1,5-a)pyrimidine Chemical Properties
Molecular Structure of (1,2,4)Triazolo(1,5-a)pyrimidine (CAS NO. 275-02-5):
IUPAC Name: [1,2,4]Triazolo[1,5-a]pyrimidine
Molecular Formula: C5H4N4
Molecular Weight: 120.112060 g/mol
XLogP3-AA: 0.1
H-Bond Donor: 0
H-Bond Acceptor: 3
Canonical SMILES: C1=CN2C(=NC=N2)N=C1
InChI: InChI=1S/C5H4N4/c1-2-6-5-7-4-8-9(5)3-1/h1-4H
InChIKey: SRNKZYRMFBGSGE-UHFFFAOYSA-N
Index of Refraction: 1.772
Molar Refractivity: 33.6 cm3
Molar Volume: 80.6 cm3
Polarizability: 13.32 × 10-24 cm3
Surface Tension: 67.4 dyne/cm
Density: 1.48 g/cm3
Melting Point: 142-145 °C(lit.)
Product Categories: Building Blocks;Heterocyclic Building Blocks;Pyrimidines
(1,2,4)Triazolo(1,5-a)pyrimidine Toxicity Data With Reference
| 1. | orl-mus TDLo:40 mg/kg | FRMCE8 Farmaco. 56 (2001),939. | ||
| 2. | orl-rat TDLo:100 mg/kg | FRMCE8 Farmaco. 56 (2001),939. |
(1,2,4)Triazolo(1,5-a)pyrimidine Safety Profile
Safety Information of (1,2,4)Triazolo(1,5-a)pyrimidine (CAS NO. 275-02-5):
Hazard Codes: Xi 
Risk Statements: 36/37/38
R36/37/38:Irritating to eyes, respiratory system and skin
Safety Statements: 26-37/39
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
S37/39:Wear suitable gloves and eye/face protection
WGK Germany: 3
A poison by route. When heated to decomposition it emits toxic vapors of NOx.
(1,2,4)Triazolo(1,5-a)pyrimidine Specification
(1,2,4)Triazolo(1,5-a)pyrimidine with cas registry number of 275-02-5 is also called for [1,2,4]Triazolo[1,5-a]pyrimidine ; 1,2,4-Triazolo[1,5-a]pyrimidine .
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