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4-Amino-5-phenyl-4H-1,2,4-triazole-3-thiol

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Products Intro: Product Name:4-Amino-5-phenyl-4H-[1,2,4]triazole-3-thiol
CAS:22706-11-2
Purity:NLT 98% Remarks:MC542627
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Products Intro: Product Name:4-Amino-5-phenyl-4H-1,2,4-triazole-3-thiol 97%
CAS:22706-11-2
Purity:97% Package:5g
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CAS:22706-11-2
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Products Intro: Product Name:4-Amino-5-phenyl-4H-1,2,4-triazole-3-thiol 97%
CAS:22706-11-2
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4-Amino-5-phenyl-4H-1,2,4-triazole-3-thiol Basic information
Product Name:4-Amino-5-phenyl-4H-1,2,4-triazole-3-thiol
Synonyms:RARECHEM BG FB 0106;IFLAB-BB F0311-0776;BUTTPARK 9\07-04;ASISCHEM V00530;AKOS BBS-00004177;AKOS TOT-0017;4-AMINO-5-PHENYL-4H-1,2,4-TRIAZOL-3-YL HYDROSULFIDE;4-AMINO-5-PHENYL-4H-1,2,4-TRIAZOLE-3-THIOL
CAS:22706-11-2
MF:C8H8N4S
MW:192.24
EINECS:
Product Categories:Building Blocks;Heterocyclic Building Blocks;Triazoles;Building Blocks;Chemical Synthesis;Heterocyclic Building Blocks
Mol File:22706-11-2.mol
4-Amino-5-phenyl-4H-1,2,4-triazole-3-thiol Structure
4-Amino-5-phenyl-4H-1,2,4-triazole-3-thiol Chemical Properties
Melting point 195 °C (dec.) (lit.) 211-215 °C (dec.)
Boiling point 309.4±25.0 °C(Predicted)
density 1.47±0.1 g/cm3(Predicted)
pka8.49±0.20(Predicted)
Safety Information
Hazard Codes Xi
Risk Statements 36/37/38
Safety Statements 26-36
WGK Germany 3
MSDS Information
ProviderLanguage
SigmaAldrich English
4-Amino-5-phenyl-4H-1,2,4-triazole-3-thiol Usage And Synthesis
PreparationSynthesis of 4[amino]-5-phenyl-4H-1,2,4-triazole-3-thiol: A suspension of potassium salt dithiocarbazinate (4.44g, 0.02M), hydrazine hydrate (2ml, 0.04M) and water (80ml) was refluxed for 3 hrs. The color of the reaction mixture changed to green, hydrogen sulphide was evolved and a homogenous solution resulted. A white solid was precipitated by dilution with cold water (100ml) and acidification with concentrated hydrochloric acid. The product was filtered, washed with cold water (2×30 ml) and recrystallised from ethanol in 42 % yield.
Melting point : 198 -200°C.
IR (KBr cm-1): 943 (N-C-S str), 1278 (N-N-C str), 3365(N-H str), 696 (C-S str), 3082 (Ar CH str), 1446 (C-N str).
NMR (ppm): 7.7 (m, 5H, Ar-H), 7.9 (s, 2H, NH2), 14.6(s, 1H, S-H).
Synthesis Reference(s)Journal of Heterocyclic Chemistry, 13, p. 925, 1976 DOI: 10.1002/jhet.5570130450
The Journal of Organic Chemistry, 47, p. 2757, 1982 DOI: 10.1021/jo00135a014
Tag:4-Amino-5-phenyl-4H-1,2,4-triazole-3-thiol(22706-11-2) Related Product Information
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