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54-85-3

Name Isoniazid
CAS 54-85-3
EINECS(EC#) 200-214-6
Molecular Formula C6H7N3O
MDL Number MFCD00006426
Molecular Weight 137.14
MOL File 54-85-3.mol

Chemical Properties

Appearance white crystalline powder
Melting point  171-173 °C (lit.)
Boiling point  251.97°C (rough estimate)
density  1.2620 (rough estimate)
refractive index  1.6910 (estimate)
Fp  >250°C
storage temp.  2-8°C
solubility  125g/l
form  Crystals or Crystalline Powder
pka pKa 2.00/3.60/10.8(H2O) (Uncertain)
color  White or colorless
Odor Odorless
PH 6-8 (50g/l, H2O, 20℃)
PH Range 5.5 - 6.5 at 10 g/l at 25 °C
Stability: Stability Stable, but may be air or light sensitive. Combustible. Incompatible with strong oxidizing agents, chloral, aldehydes, iodine, ferric salts, hypochlorites.
Water Solubility  14 g/100 mL (25 ºC)
Sensitive  Air Sensitive
Merck  14,5186
BRN  119374
InChIKey QRXWMOHMRWLFEY-UHFFFAOYSA-N
CAS DataBase Reference 54-85-3(CAS DataBase Reference)
IARC 3 (Vol. 4, Sup 7) 1987
NIST Chemistry Reference Isoniazid(54-85-3)
EPA Substance Registry System 54-85-3(EPA Substance)

Safety Data

Hazard Codes  Xn
Risk Statements 
R22:Harmful if swallowed.
R38:Irritating to the skin.
R40:Limited evidence of a carcinogenic effect.
R36/37/38:Irritating to eyes, respiratory system and skin .
Safety Statements 
S37:Wear suitable gloves .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
RIDADR  2811
WGK Germany  3
RTECS  NS1751850
TSCA  Yes
PackingGroup  III
HS Code  29333999
Hazardous Substances Data 54-85-3(Hazardous Substances Data)
Toxicity
LD50 in mice (mg/kg): 151 i.p., 149 i.v. (Jenney, Pfeiffer)

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Hazard Information

Material Safety Data Sheet(MSDS)

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