Homologous enzymes from microorganisms are known as hydantoinase, used as biocatalyst for hydrolysis of 5-monosubstituted hydantoins
in the synthesis of D- and L-amino acids [10,11].
Synthesis and Characterization of Spiroconnected Hydantoins
. For the synthesis of spiroconnected bicyclic compounds bearing two pharmacophores, hydantoin
and N-alkoxyalkylpiperidine, the Strecker reaction was chosen .
syndrome and its anaesthetic implications: a case report.
It sounds like urine because it is made from urine, and often is labeled as diazolidinyl urea, imidazolidinyl urea, or DMDM hydantoin
and sodium hydroxymethylglycinate.
(10) Also of concern are carcinogenic formaldehyde and "donor" preservatives that release it, such as quaternium-15 and DMDM hydantoin
Feminine wipes, washes, and deodorant products contain toxic preservatives like parabens, or quaternium-15 and DMDM hydantoin
, which release cancer-causing formaldehyde.
Look for these ingredients on labels: DMDM hydantoin
, diazolidi-nyl urea, imidazolidinyl urea, methenamine or quarternium-15.
In soap and liquid soap: Triclocarban and Triclosan In toothpaste: Triclosan In moisturizers: Retinyl palmitate or retinolin In shampoo and conditioner: Fragrance, PEG, ceteareth and polyethylene, DMDM hydantoin
and various types of parabens: propyl, isopropyl, butyl, isobutyl In lip products: Retinyl palmitate or retinol In nail products: Formaldehyde or formalin, Toluene, Dibutyl phthalate (DBP) EWG suggests avoiding certain "problem products" completely.
Manufactured by various pharmaceutical companies with various brand names, phenytoin (PHT) is also known as Dilantain, Hydantoin
or Phenytek in the United States; Dilantain or Remytoine in Canada; Epamin, Hidantoina in Mexico; and Fenidatoin or Fenitron or other names elsewhere in the world.
cHb is generally assayed by liquid chromatography coupled to ultraviolet detection of the hydantoin
derivative of N-carbamylvaline obtained during acid hydrolysis (61).
Brodjonegoro said under the regulation, cosmetics and pharmaceutical feedstock like propane, ethylene, hydroquinone, hydantoin
and carbofuran, would be exempted from import duty.
Beauty Ingredients: Laracare A200 galactoarabinan; Natrulon RC-100 L-Carnitine; Natrulon H-10 polyglycerol; Polyaldo polyglycerol esters; Geogard ultra preservative (gluconolactone and sodium benzoate); Geogard 111 preservative (dehydroacetic acid); Geogard 221 preservative (dehydroacetic acid and benzyl alcohol); Glydant preservatives (DMDM hydantoin
); Glydant plus liquid preservatives (DMDM Hydantoin
& IPBC); Glycacil preservatives (IPBC)
Formaldehyde is an indirect additive, released at a controlled rate from imidazolinyl urea, DMDM hydantoin
or quaternium 15.
A lack of hydantoin
ring formation upon further heating the NCO/ASPE reaction product proved that the OH group was more reactive.
Phenytoin causes a pattern of defects called fetal hydantoin
syndrome (FHS) as well as other defects, such as those involving the heart and growth.