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  • 8.40153 - 1-Phenyl-1H-tetrazole-5-thiol

8.40153 EMD Millipore


1-Phenyl-1H-tetrazole-5-thiol for synthesis. CAS 86-93-1, pH 3 - 5 (H₂O, 20 °C) suspension., for synthesis

Synonym: 5-Mercapto-1-phenyltetrazole, 1-Phenyl-2-tetrazoline-5-thione

  • CAS Number 86-93-1

  • Linear Formula C₇H₆N₄S

  • Molecular Weight 178.21 g/mol

  •  EC Number 201-710-5



Related Categories Biochemicals and Reagents More...
packaging   25 g in Plastic bottle (8401530025)
mp   145 °C (decomposition)
pH   3 - 5 (H₂O, 20 °C) suspension
bulk density   140 kg/m3
LD 50 oral   LD50 Rat > 4000 mg/kg
shipped in   ambient
storage temp.   Store at +15°C to +25°C.
specifications   Assay (HPLC, area%): ≥ 99.0 % (a/a)
  Melting range (lower value): ≥ 143 °C
  Melting range (upper value): ≤ 147 °C
  Identity (IR): passes test

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Safety Information

HS Code 
2933 99 80
Precautionary Statement(s) 
P210: Keep away from heat.
Storage class 
4.1A Other explosive hazardous materials
WGK 1 slightly water endangering
Organic peroxides can be detected in aqueous solutions or organic solvents using the Perex-Test® (Cat. No. 116206). Pure peroxides are diluted to min. 10% in a suitable solvent or with water and added in small portions, with temperature control, to iron(II) chloride (Cat. No. 103860) solution. Test for complete reaction with the Perex-Test® (Cat. No. 116206). Container D. Explosive substances (storage class 4.1A) should be packed separately and tightly sealed for disposal. Ensure sufficient phlegmatization by water or the stated phlegmatizing agent!
Declaration (railroad and road) ADR, RID 
Kein Gefahrgut
Declaration (transport by air) IATA-DGR 
No Dangerous Good
Declaration (transport by sea) IMDG-Code 
No Dangerous Good
S Phrase 
S 15
Keep away from heat.
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