Description

Rac Geosmin-D3 is a deuterium-labeled isotopologue of geosmin, a key earthy-musty odorant. This compound is essential as a high-purity internal standard for precise quantitative analysis in environmental and flavor chemistry. It is primarily used by analytical laboratories, research institutions, and quality control departments in the water treatment, beverage, and fragrance industries to ensure accurate trace-level detection and quantification of geosmin.

Application

• Internal Standard for GC-MS/MS Analysis: Critical for the accurate quantification of geosmin in drinking water, source water, and wastewater to identify taste and odor issues.
• Food & Beverage Quality Control: Used in the analysis of wine, beer, juice, and fish to detect off-flavors caused by microbial contamination.
• Fragrance & Flavor Research: Serves as a stable isotopic tracer in studies of odor perception, metabolic pathways, and the synthesis of aroma compounds.
• Environmental Monitoring: Enables precise measurement of geosmin produced by cyanobacteria and actinomycetes in lakes, reservoirs, and soil.
• Pharmaceutical Analysis: Potential use as a reference standard in the analysis of antibiotics or other pharmaceuticals derived from Streptomyces species.
• Method Development & Validation: A vital tool for developing, calibrating, and validating sensitive analytical methods (e.g., SPME-GC-MS) for volatile organic compounds.

Basic Information

Product Name	Rac Geosmin-D3
CAS No.	135441-88-2
Molecular Formula	C12H19D3O
Molecular Weight	185.30 g/mol
Synonyms	(4R,4aS,8aR)-4,8a-Dimethyl-1,2,3,4,5,6,7,8-octahydronaphthalen-4a(2H)-ol-d3; 1,10-Dimethyl-9-decalol-d3; 1,10-Dimethyl-trans-9-decalol-d3; Geosmin-d3; trans-1,10-Dimethyl-trans-9-decalol-d3; Octahydro-4,8a-dimethyl-4a(2H)-naphthalenol-d3; 4,8a-Dimethyl-decahydro-4a-naphthalenol-d3
EINECS	Contact for details

Quality Control

Our Rac Geosmin-D3 is manufactured and handled under strict quality protocols to ensure the high chemical and isotopic purity required for analytical standards. Each batch is supported by a comprehensive Certificate of Analysis (COA) detailing parameters such as isotopic enrichment (D-atom %), chemical purity by GC and/or HPLC, and confirmation of structure by NMR and MS. We adhere to relevant industry standards for reference materials.

Storage

Preserve in a tightly closed container, protected from light. Store at 2-8°C. Due to its highly volatile nature, allow the vial to equilibrate to room temperature before opening to prevent moisture ingress and loss of material.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (NMR)	Conforms to structure
Identification (MS)	Conforms to structure
Purity (GC)	≥ 98.0%
Isotopic Purity (D-atom %)	≥ 98.0%
Chemical Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%

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