Description

5-Chloro-2-(n-Octyl-D17)-4-Isothiazolin-3-One is a deuterated analog of a widely used industrial biocide, featuring a fully deuterated octyl side chain. This compound is specifically engineered for use as an internal standard in advanced analytical methods, providing superior accuracy and reliability for quantitative analysis. It is an essential reference material for analytical laboratories, research institutions, and quality control departments in the agrochemical, polymer, and specialty chemical industries requiring precise measurement of isothiazolinone-based preservatives.

Application

• Primary use as a deuterated internal standard for Gas Chromatography-Mass Spectrometry (GC-MS) and Liquid Chromatography-Mass Spectrometry (LC-MS) analysis.
• Quantitative analysis and method development for the non-deuterated parent compound, 5-Chloro-2-n-octyl-4-isothiazolin-3-one (DCOIT), in various matrices.
• Metabolite studies and environmental fate analysis in agrochemical and biocidal product research.
• Quality control and assurance testing for manufacturers of paints, coatings, and adhesives containing isothiazolinone preservatives.
• Stability testing and degradation profiling in polymer and material science applications.
• Regulatory compliance and residue testing to meet global chemical safety standards (e.g., REACH, EPA).

Basic Information

Product Name	5-Chloro-2-(n-Octyl-D17)-4-Isothiazolin-3-One
CAS No.	1189719-53-6
Molecular Formula	C11D17ClNOS
Molecular Weight	Contact for details
Synonyms	D17-Octhilinone; Deuterated OIT; D17-OIT; 5-Chloro-2-(1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecadeuterooctyl)-1,2-thiazol-3(2H)-one; 4-Isothiazolin-3-one, 5-chloro-2-(octyl-D17)-; Deuterated 2-n-Octyl-4-isothiazolin-3-one; D17-4,5-Dichloro-2-n-octyl-4-isothiazolin-3-one (related); Internal Standard for OIT Analysis
EINECS	Contact for details

Quality Control

Every batch of our 5-Chloro-2-(n-Octyl-D17)-4-Isothiazolin-3-One is synthesized and purified under controlled conditions to ensure the highest isotopic purity and chemical integrity. Our products undergo rigorous quality testing, including NMR (¹H, ¹³C) and mass spectrometry, to confirm deuteration level and chemical identity. Certificates of Analysis (COA) detailing purity, isotopic enrichment, and analytical results are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Keep away from strong acids and organic solvents. For long-term stability, consider storage under an inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Identification (MS)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Isotopic Purity (Deuteration Level)	≥ 98 atom % D
Water Content (KF)	≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.