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25660-70-2

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Basic Information
CAS No.: 25660-70-2
Name: 2-AMINO-5-ETHYLTHIO-1,3,4-THIADIAZOLE
Article Data: 22
Molecular Structure:
Molecular Structure of 25660-70-2 (2-AMINO-5-ETHYLTHIO-1,3,4-THIADIAZOLE)
Formula: C4H7 N3 S2
Molecular Weight: 161.252
Synonyms: 1,3,4-Thiadiazole,2-amino-5-(ethylthio)- (6CI,7CI,8CI);2-Amino-5-ethylsulfanyl-1,3,4-thiadiazole; 2-Amino-5-ethylthio-1,3,4-thiadiazole;5-(Ethylthio)-1,3,4-thiadiazol-2-amine;5-Amino-2-(ethylthio)-1,3,4-thiadiazole; NSC 522480
EINECS: 247-169-9
Density: 1.39g/cm3
Melting Point: 135-137oC
Boiling Point: 322.2°Cat760mmHg
Flash Point: 148.7°C
Appearance: YELLOW FINE CRYSTALLINE POWDER
Hazard Symbols: Xn,Xi
Risk Codes: 36/37/38-20/22
PSA: 106.07000
LogP: 1.16240
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Chemistry


IUPAC Name: 5-Ethylsulfanyl-1,3,4-thiadiazol-2-amine
Canonical SMILES: CCSC1=NN=C(S1)N
InChI: InChI=1S/C4H7N3S2/c1-2-8-4-7-6-3(5)9-4/h2H2,1H3,(H2,5,6)
InChIKey: VWRHSNKTSSIMGE-UHFFFAOYSA-N
Molecular Weight: 161.24848 [g/mol]
Molecular Formula: C4H7N3S2
XLogP3-AA: 1.2
H-Bond Donor: 1
H-Bond Acceptor: 3
EINECS: 247-169-9 
Index of Refraction: 1.632
Molar Refractivity: 41.37 cm3
Molar Volume: 115.9 cm3
Surface Tension: 74 dyne/cm
Density: 1.39 g/cm3
Flash Point: 148.7 °C
Enthalpy of Vaporization: 56.41 kJ/mol
Boiling Point: 322.2 °C at 760 mmHg
Vapour Pressure: 0.000283 mmHg at 25 °C
Melting Point: 135-137 °C(lit.)
Appearance: yellow fine crystalline powder
Product Categories of 2-Amino-5-ethylthio-1,3,4-thiadiazole (CAS NO.25660-70-2): API intermediates; Building Blocks; Heterocyclic Building Blocks; Thiadiazoles

Safety Profile

Hazard Codes: HarmfulXn,IrritantXi
Risk Statements: 36/37/38-20/22 
R36/37/38:Irritating to eyes, respiratory system and skin. 
R20/22:Harmful by inhalation and if swallowed.
Safety Statements: 24/25-23 
S24/25:Avoid contact with skin and eyes. 
S23:Do not breathe vapour.
WGK Germany: 3
Hazard Note of 2-Amino-5-ethylthio-1,3,4-thiadiazole (CAS NO.25660-70-2): Irritant

Specification

  2-Amino-5-ethylthio-1,3,4-thiadiazole (CAS NO.25660-70-2), its Synonyms are 1,3,4-Thiadiazol-2-amine, 5-(ethylthio)- ; 1,3,4-Thiadiazole, 2-amino-5-(ethylthio)- (8CI) ; 5-(Ethylthio)-1,3,4-thiadiazol-2-amine .