Safety assessment of alkyl glyceryl ethers as used in cosmetics.

Safety Assessment of Alkyl PEG/PPG Ethers as Used in Cosmetics.

The Cosmetic Ingredient Review (CIR) Expert Panel assessed the safety of 131 alkyl polyethylene glycol (PEG)/polypropylene glycol ethers as used in cosmetics, concluding that these ingredients are safe in the present practices of use and concentration described in this safety assessment when formulated to be nonirritating. Most of the alkyl PEG/PPG ethers included in this review are reported to...

Tumor Lipids BIOSYNTHESIS

Labeled long chain acyl-CoA, aldehyde, and alcohol (16:0) were incubated in the peritoneal cavity of mice bearing Ehrlich ascites cells and the distribution of radioactivity in the acyl, alkyl, and alk-1-enyl moieties of various neutral lipid and phospholipid classes was compared. The results suggested the following metabolic relations. 1. Alkyl glyceryl ethers are precursors of alk-l-enyl glyc...

Tumor Lipids

Labeled long chain acyl-CoA, aldehyde, and alcohol (16:0) were incubated in the peritoneal cavity of mice bearing Ehrlich ascites cells and the distribution of radioactivity in the acyl, alkyl, and alk-1-enyl moieties of various neutral lipid and phospholipid classes was compared. The results suggested the following metabolic relations. 1. Alkyl glyceryl ethers are precursors of alk-l-enyl glyc...

The biocleavage of alkyl glyceryl ethers in Morris hepatomas and other transplantable neoplasms.

Characterizations of Pneumocystis carinii and rat lung lipids: glyceryl ethers and fatty alcohols.

Pneumocystis carinii carinii and rat lung phospholipids contained 3-6% 1-alkyl-2-acyl glycerols composed of the glyceryl ether species, 1-O-octadecyl glycerol (batyl alcohol), 1-O-octadec-9-enyl glycerol (selachyl alcohol), 1-O-hexadecyl glycerol (chimyl alcohol), and 1-O-hexadec-9-enyl glycerol. Of the major phospholipid classes, phosphatidylinositol (PI) and phosphatidylserine contained the h...