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Isoniazid Structure

Isoniazid

Product NameIsoniazid

CAS54-85-3

CBNumberCB5102053

MFC6H7N3O

MW137.14

EINECS200-214-6

MDL NumberMFCD00006426

MOL File54-85-3.mol

MSDS FileSDS

Chemical Properties

Melting point 171-173 °C (lit.)
Boiling point 251.97°C (rough estimate)
Density  1.2620 (rough estimate)
refractive index  1.6910 (estimate)
Flash point >250°C
storage temp.  2-8°C
solubility  125g/l
pka pKa 2.00/3.60/10.8(H2O) (Uncertain)
form  Crystals or Crystalline Powder
color  White or colorless
Odor Odorless
PH Range 5.5 - 6.5 at 10 g/l at 25 °C
PH 6-8 (50g/l, H2O, 20℃)
Water Solubility  14 g/100 mL (25 ºC)
Sensitive  Air Sensitive
Merck  14,5186
BRN  119374
Stability Stability Stable, but may be air or light sensitive. Combustible. Incompatible with strong oxidizing agents, chloral, aldehydes, iodine, ferric salts, hypochlorites.
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 Isoniazid (54-85-3)

Safety

Symbol(GHS)
Signal wordWarning
Hazard statements H302-H315
Precautionary statements P264-P270-P280-P301+P312-P302+P352-P332+P313
Hazard Codes  Xn
Risk Statements  22-38-40-36/37/38
Safety Statements  37-36/37/39-26
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)
NFPA 704:
0
2 0

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