Sigma-Aldrich Imidazole Buffer Substance Acs

grade

ACS reagent

Quality Level

200

vapor pressure

0.003 hPa ( 20 °C)

assay

≥99% (perchloric acid titration)

form

solid

autoignition temp.

480 °C

potency

970 mg/kg LD₅₀, oral (Rat)

dilution

(for analytical testing)

pH

10.5 (20 °C, 67 g/L in H₂O)

bp

256 °C/1013 hPa

mp

90 °C

transition temp

flash point 145 °C

solubility

633 g/L

density

1.233 g/cm³ at 20 °C

bulk density

500‑600 kg/M³

storage temp.

15-25°C

SMILES string

[nH]1cncc1

InChI

1S/C3H4N2/c1-2-5-3-4-1/h1-3H,(H,4,5)

InChI key

RAXXELZNTBOGNW-UHFFFAOYSA-N