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51-45-6

Name Histamine
CAS 51-45-6
EINECS(EC#) 200-100-6
Molecular Formula C5H9N3
MDL Number MFCD00005210
Molecular Weight 111.15
MOL File 51-45-6.mol

Chemical Properties

Appearance White to slightly yellow powder
Melting point  83-84 °C (lit.)
Boiling point  167 °C/0.8 mmHg (lit.)
density  0.9902 (rough estimate)
refractive index  1.4690 (estimate)
storage temp.  −20°C
solubility  DMSO: 20 mg/ml; Ethanol: 10 mg/ml; PBS (pH 7.2): 10 mg/ml
form  Solid
pka 6.04(at 25℃)
color  White to light yellow
Water Solubility  Soluble in water, alcohol, and hot chloroform.
Merck  13,4739
BRN  2012
Stability: Hygroscopic
InChIKey NTYJJOPFIAHURM-UHFFFAOYSA-N
LogP -0.700
CAS DataBase Reference 51-45-6(CAS DataBase Reference)
NIST Chemistry Reference Histamine(51-45-6)
EPA Substance Registry System 51-45-6(EPA Substance)

Safety Data

Hazard Codes  Xn
Risk Statements 
R22:Harmful if swallowed.
R36/37/38:Irritating to eyes, respiratory system and skin .
R42/43:May cause sensitization by inhalation and skin contact .
Safety Statements 
S22:Do not breathe dust .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37:Wear suitable protective clothing and gloves .
RIDADR  UN 2811 6.1/PG 3
WGK Germany  3
RTECS  MS1050000
3-10-23
TSCA  Yes
HazardClass  6.1(b)
PackingGroup  III
HS Code  29332900
Hazardous Substances Data 51-45-6(Hazardous Substances Data)
Toxicity
LD50 i.p. in mice: 2020 mg/kg (Nagai)

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