Home Categories Pharmaceutical intermediates Isonicotinic acid
A4973312

Isonicotinic acid , AR,99% , 55-22-1

Synonym(s):
INA;4-Pyridinecarboxylic acid;Pyridine-4-carboxylic acid;4-Picolinic acid;66 kDa neurofilament protein

CAS NO.:55-22-1

Empirical Formula: C6H5NO2

Molecular Weight: 123.11

MDL number: MFCD00006429

EINECS: 200-228-2

Pack Size Price Stock Quantity
5G RMB23.20 In Stock
25G RMB28.00 In Stock
100G RMB52.80 In Stock
250g RMB79.20 In Stock
500G RMB144.80 In Stock
2.5KG RMB531.20 In Stock
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Update time: 2022-07-08

PRODUCT Properties

Melting point: ≥300 °C (lit.)
Boiling point: 260 °C (15 mmHg)
Density  1,47g/cm
refractive index  1.5423 (estimate)
Flash point: 260°C/15mm
storage temp.  no restrictions.
solubility  6g/l
pka 4.96(at 25℃)
form  powder
color  yellow to tan
PH 3-4 (6g/l, H2O, 20℃)(saturated solution)
Water Solubility  5.2 g/L (20 ºC)
Merck  14,5187
BRN  109599
InChIKey TWBYWOBDOCUKOW-UHFFFAOYSA-N

Description and Uses

Isonicotinic acid is a metabolite of isoniazid. It is an isomer of nicotinic acid. The chronic toxicity of isonicotinic acid is slightly higher than that of isonicotinic acid hydrazide ( INH ) .
Isonicotinic acid is a moderately basic compound (based on its pKa). Isonicotinic acid is an organic compound with a carboxyl group on a pyridine ring. The carboxyl group for isonicotinic acid is on the 4-position instead of the 3-position for nicotinic acid. It is an isomer of nicotinic acid. Isonicotinic acid is a metabolite of isoniazid.
Isonicotinic acid considered to be inactive isomer of nicotinic acid. Isonicotinic acid is a metabolite of pyridine-4-carboxy hydrazide (isonicotinyl hydrazide; isoniazid) a front-line weapon in the battle against tuberculosis. Isonicotinic acid and its derivatives are used in manufacturing pharmaceuticals and agrochemicals.
Used in the biological study of differentiation induced by nicotinic acid, nicotinamide and isonicotinic acid in human leukemia cell lines

Safety

Symbol(GHS) 
GHS07
Signal word  Warning
Hazard statements  H319
Precautionary statements  P264-P280-P305+P351+P338-P337+P313
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-36
WGK Germany  2
RTECS  NS1103000
TSCA  Yes
HS Code  29333999
Toxicity LD50 orally in Rabbit: 5000 mg/kg

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