p-Phenylenediamine (PPD) is an organic compound with the formula C6H4(NH2)2. This derivative of aniline is a white solid, but samples can darken due to air oxidation.It is mainly used as a component of engineering polymers and composites like kevlar. It is also an ingredient in hair dyes a

Protamine sulfate is a medication that is used to reverse the effects of heparin. It is specifically used in heparin overdose, in low molecular weight heparin overdose, and to reverse the effects of heparin during delivery and heart surgery. It is given by injection into a vein. The onset

Food allergies are potentially fatal immune-mediated disorders that are growing globally. The relationship between sex and food allergy remains incompletely understood. Here we tested the hypothesis that, should sex influence the clinical response to food allergens, this would be reflected by a sex

Vitellin is a protein found in the egg yolk. It is a phosphoprotein. Vitellin is a generic name for major of many yolk proteins. Vitellin has been known since the 1900s. The periodic acid-Schiff method and Sudan black B dye was used to help determine that Vitellin is a glycolipoprotein because i

Tabar AI, Acero S, Arregui C, UrdĂĄnoz M, Quirce S. Asma y alergia por el colorante carmĂ­n [Asthma and allergy due to carmine dye]. An Sist Sanit Navar. 2003;26 Suppl 2:65-73. Spanish. PMID: 13679965. Abstract Cochineal carmine, or simply carmine (E120), is a red colouring that is obtained from the