Bismerthiazol

Synonym(s):N,N′-Methylene-bis(2-amino-5-sulfhydryl-1,3,4-thiadiazole)

CAS NO.：79319-85-0
Empirical Formula: C5H6N6S4
Molecular Weight: 278.4
MDL number: MFCD01681864
SAFETY DATA SHEET (SDS)
Update Date: 2026-09-12 18:56:28

What is Bismerthiazol?

Chemical properties

Pure product is white rectangular columnar or light yellow loose powder, mp189～191℃ (industrial product mp172～174℃), decomposition temperature 200℃, easily soluble in dimethylformamide, pyridine, dimethyl sulfoxide, etc. Soluble in methanol, ethanol, acetone, insoluble in benzene, chloroform and water.

The Uses of Bismerthiazol

Bismerthiazol is a high-efficiency, low-toxicity, and low-residue fungicide for the control of bacterial blight in early, middle and late rice seedlings and Honda.

What are the applications of Application

Bismerthiazol is a reference standard

Synthesis

Bismerthiazol can be prepared by the methods:Put 180kg of hydrazine sulfate, a small amount of catalyst, and 165kg of ammonium thiocyanate into the reactor, heat to reflux, cool, filter, wash with water, and suction filter to obtain dithiourea.

Properties of Bismerthiazol

Boiling point:	415.4±55.0 °C(Predicted)
Density	2.12±0.1 g/cm3(Predicted)
storage temp.	2-8°C
pka	7.20±0.20(Predicted)

Safety information for Bismerthiazol

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07
GHS Hazard Statements	H302:Acute toxicity,oral H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes	P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.