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8.07028 EMD Millipore

Phenyl isothiocyanate

Phenyl isothiocyanate for synthesis. CAS 103-72-0, EC Number 203-138-1, chemical formula C₆H₅NCS., for synthesis

Synonym: Isothiocyanic acid phenyl ester, PTC

  • CAS Number 103-72-0

  • Linear Formula C₇H₅NS

  • Molecular Weight 135.18 g/mol

  •  EC Number 203-138-1



Related Categories Biochemicals and Reagents More...
bp   221 °C (1013 hPa)
vapor pressure   10 hPa (20 °C)
density   1.13 g/cm3 (20 °C)
flash point   87 °C
mp   -21 °C
LD 50 oral   LD50 Rat 157 mg/kg
shipped in   ambient
storage temp.   Store below +30°C.
specifications   Assay (GC, area%): ≥ 98.0 % (a/a)
  Density (d 20 °C/ 4 °C): 1.132 - 1.135
  Identity (IR): passes test

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Safety Information

HS Code 
2930 90 98
Hazard Statement(s) 
H301 + H311 + H331: Toxic if swallowed, in contact with skin or if inhaled.
H335: May cause respiratory irritation.
Precautionary Statement(s) 
P280: Wear protective gloves/ protective clothing.
P302 + P352: IF ON SKIN: Wash with plenty of soap and water.
P304 + P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P308 + P310: IF exposed or concerned: immediately call a POISON CENTER or doctor/ physician.
Storage class 
6.1A Combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials
WGK 3 highly water endangering
Carcinogenic compounds and flammable compounds labelled "Highly toxic" or "Toxic": container F. Alkyl sulfates are carcinogenic; Take particular care to avoid inhalation and skin contact. To neutralize alkyl sulfates, add dropwise (from a dropping funnel) to concentrated ice-cool Ammonia solution (Cat.No. 105426) with vigorous stirring. Before placing in container D, check the pH with pH Universal indicator strips (Cat.No. 109535).
Hazard Pictogram(s) 
GHS06  GHS06
Hazard Symbols 
Toxic  Toxic
Declaration (railroad and road) ADR, RID 
UN 2206 , 6.1, II
Declaration (transport by air) IATA-DGR 
UN 2206 , 6.1, II
Declaration (transport by sea) IMDG-Code 
UN 2206 , 6.1, II
Categories of danger 
toxic, irritant
R Phrase 
R 23/24/25-37
Toxic by inhalation, in contact with skin and if swallowed.Irritating to respiratory system.
S Phrase 
S 28-36/37-45
After contact with skin, wash immediately with plenty of soap and water, if possible also with polyethylene glycol 400.Wear suitable protective clothing and gloves.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).
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