Biocide Manufacturer

Shandong IRO Biocide Chemicals Co., Ltd. specializes in water treatment biocides and organic biocides for 10 years.
Biocides products include glutaraldehyde, benzalkonium chloride(bkc), glyoxal, bronopol, thps, isothiazolinones, dbnpa, dbdmh, bcdmh and dcdmh.

Home >> Isothiazolinones >> 1 2-Benzisothiazolin-3-One

1,2-Benzisothiazolin-3-One (BIT)

CAS No.: 2634-33-5   

Molecular Formula: C7H5NOS                       Molecular Weight:151.18



(1) Bactericidal capacity: BIT is an important bactericide and antiseptic. It can restrain microbe (fungi, germ, algae etc.) growing in organic medium, resolved any problem that caused by microbe growing in organic product, such as mildewing, degeneration, go bad.

 (2) Stability: BIT is stable over a broad pH range of 4 – 12, and a broad temperature range.

 (3) Solubility: BIT is miscible in water and most of low alcohols and glycols

(4) Safety: BIT has low poison, no irritation to eyes and skin


Item Index
Appearance Slight yellow powder
Purity (HPLC) ≥98%
 Water  ≤15%
 Melting point 155-158°C
 pH (1% solution)    8.0 - 10


Biocide, miscible in water and of low toxicity. BIT can be used to control the growth of microorganisms in emulsion paints, adhesives, concrete additives and other water treatment formulations.

Using quantum: 0.03~0.3% (w/w)

Package and Storage:

Packed in 25kg fiber drum.


BIT; 1,2-Benzisothiazolin-3-One; 1,2-Benzisothiazolin-3(2H)-one; Proxan; Proxel; Proxel XL; Proxil