New incident report
Incident Report Number: 2016-5461
Registrant Reference Number: 2016-C-01
Registrant Name (Full Legal Name no abbreviations): ARYSTA LIFESCIENCE NORTH AMERICA, LLC
Address: 15401 Weston Parkway, Suite 150
City: Cary
Prov / State: NC
Country: USA
Postal Code: 27513
Scientific Study
PMRA Registration No. 18221 PMRA Submission No. EPA Registration No.
Product Name: Captan Technical Fungicide
Unknown
Unknown
Title Acute Oral Toxicology (Acute Toxic Class Method) in the Rat with Tetrahydrophthalimide
Date 08-MAY-15
No
New health or environmental hazard
In this report female Wistar rats were treated with terahydrophthalimide (THPI), suspended in cottonseed oil, via oral gavage. Specifically, three female rats were administered 2000 mg/kg THPI and 6 female rats were administered 300 mg/kg THPI. Animals treated with 2000 mg/kg THPI were sacrificed on study day 2 for ethical reasons, animals treated with 300 mg/kg were not sacrificed. Based on this data the LD50 value was calculated to be 500 mg/kg.The present acute oral study represents an estimation of the acute oral LD50 for THPI, and confirms its previous classification category. However, for ecotoxicology risk assessments an exact LD50 value is required. Therefore, a follow up study is currently in progress at Product Safety Labs in the USA to determine an exact LD50 value for THPI. The results of this study are anticipated to be available November 2016. Based on the available data that the exact LD50 of THPI is expected to be greater than the estimated LD50 of 500 mg/kg.
No
The attached report is a supplemental acute oral toxicity study of terahydrophthalimide, a manufacturing impurity and plant and animal metabolite of captan technical fungicide. The existence of the study, which we understand was initiated in support of the reevaluation of captan technical fungicide in Europe, was only recently shared with the North American division of Arysta LifeScience.