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CAS No.  26172-55-4, 2682-20-4           Molecular weight:  115.16
Structural Formula:

2-methyl-4-thiazoline-3-ketone        5-chloro- methyl-4-thiazoline-3-ketone
Properties:
Isothiazolinones is composed of5-chloro-2-methyl-4-thiazoline-3-ketone (CMI) and2-methyl-4-thiazoline-3-ketone (MI). The bactericidal effect ofIsothiazolinones is carried out through breaking the bond betweenbacteria and algae protein. When contacted with microbes,Isothiazolinones can quickly inhibit their growth, thus leading todeath of these microbes. Isothiazolinones has strong inhibition andbiocidal effects on ordinary bacteria, fungi and alga, and has manyadvantages such as high biocidal efficiency, good degradation, noresidual, safety in operation, good compatibleness, goodstabilization, low cost in operation.
Isothiazolinones can mix with chlorine and most cation, anion, andnon-ionic surfactants. When used at high dosage, its biosludgestripping effect is excellent.
Isothiazolinones is a kind of fungicidal with properties of broadspectrum, high efficiency, low toxicity and non-oxidative, it isthe ideal biocidal in industrial circulating cool water system andin wastewater treatment in oilfield, papermaking, pesticide,cutting oil, leather, detergent and cosmetics etc..
Specification:
Items                                                                     Index
                                                   GradeI                                         Grade II
Appearance Light yellow  transparent liquid Light        yellow or light green transparent liquid
Active content %                             ≥14.0                                            ≥1.5
pH (as it)                                   2.0-4.0                                          2.0-5.0
Density (20℃)g/cm3                     1.26-1.32                                         1.02-1.05
CMI/MI (wt %)                           2.5-3.4                                           2.5-4.0
Usage:
When used as sludge stripper for grade II, the dosage of150-300mg/L is preferred, when used as boicide, the dosage of80-100mg/L is preferred, and charges every 3-7 days. No usedtogether with oxidative fungicidal such as chlorine, and no used incooling water system containing sulfur. When used together withquaternary amine, the effect will be better. When used asindustrial fungicide in paints or coatings, the dosage of 0.05-0.4%is preferred. 
Package and Storage:
200L closed plastic drum,IBC(1000L). Storage for ten months inshady room and dry place.
Safety Protection:
Corrosive, Avoid contact with eye and skin, Wear splash resistantsafety goggles and rubber glores.once contacted, flush withwater.