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https://ntp.niehs.nih.gov/go/8496

Target Organs and Levels of Evidence for TR-479

Toxicology and Carcinogenesis Studies of Coconut Oil Acid Diethanolamine Condensate (CASRN 68603-42-9) in F344/N Rats and B6C3F1 Mice (Dermal Studies)

Chemical (Study Title)
CASRN		 Peer Review Date Route/Exposure Levels Study Laboratory
Coconut oil acid diethanolamine condensate
68603-42-9		 12/10/1997 Topical Application
R: 0, 50, or 100 mg/kg M: 0, 100, or 200 mg/kg (50 sex/species/group)		 Battelle Columbus Laboratory

Levels of Evidence

Male Rats: No Evidence
Type Organ/Tissue (Lesion)
Non-Neoplastic Lesions
  • Skin: epidermal hyperplasia; sebaceous gland hyperplasia; parakeratosis; hyperkeratosis
Female Rats: Equivocal Evidence
Type Organ/Tissue (Lesion)
May Have Been Related
  • Kidney Tubular Cell: adenoma or carcinoma (standard evaluation 0/50, 2/50, 0/50; standard and extended evaluations combined 0/50, 4/50, 1/50)
Non-Neoplastic Lesions
  • Skin: epidermal hyperplasia; sebaceous gland hyperplasia; parakeratosis; hyperkeratosis
  • Forestomach: chronic active inflammation; epithelial hyperplasia; epithelial ulcer
  • Kidney: severity of nephropathy
Male Mice: Clear Evidence
Type Organ/Tissue (Lesion)
Neoplastic Lesions
  • Liver: adenoma 22/50, 35/50, 45/50; hepatoblastoma 1/50, 1/50, 10/50; hepatocellular adenoma, carcinoma, or hepatoblastoma 29/50, 39/50, 49/50
  • Kidney Tubular Cell: adenoma 1/50, 1/50, 7/50; renal tubule adenoma or carcinoma 1/50, 1/50, 9/50
Non-Neoplastic Lesions
  • Liver: eosinophilic foci
  • Skin: epidermal hyperplasia; sebaceous gland hyperplasia; hyperkeratosis; ulcer
  • Thyroid gland: follicular cell hyperplasia
Female Mice: Clear Evidence
Type Organ/Tissue (Lesion)
Neoplastic Lesions
  • Liver: adenoma 32/50, 44/50, 43/50; hepatocellular carcinoma 3/50, 21/50, 32/50; hepatocellular adenoma, carcinoma, or hepatoblastoma 33/50, 46/50, 48/50
Non-Neoplastic Lesions
  • Skin: epidermal hyperplasia; sebaceous gland hyperplasia; hyperkeratosis; chronic active inflammation; parakeratosis
  • Thyroid gland: follicular cell hyperplasia