Substance Name: Dibutyl phthalate (DBP) CAS Number: 84-74-2
DBP is listed in Regulation (EC) No 1272/2008 as follows: Classification and labelling of DBP according to Annex VI, Table 3.1 of Regulation (EC) No 1272/2008 Index No International Chemical Identification EC No CAS No Classification Labelling Specific Conc. Limits, M-Hazard factors Class and Category Code(s) Hazard Statement Code(s) Pictogram,
Dibutyl phthalate
DBP is produced by the reaction of n -butanol with phthalic anhydride. [3] DBP is an important plasticizer that enhances the utility of some major engineering plastics, such as PVC. Such modified PVC is widely used in plumbing for carrying sewerage and other corrosive materials. [3] Degradation [ edit]
Cross-Reactivity of Drug-Dependent Antibodies in Patients
Cross-reactions, many quite strong (S) were observed among DDAbs specific for drugs in both structural groups (Tables 1 and 2). Particularly noteworthy were cross-reactions of the 19 Group 1 DDAbs with ampicillin (6) and penicillin (6) (Table 1) and of the 14 Group 2 DDAbs with cefepime (6), ceftizoxazole (6) and ceftriaxone (3) (Table 2).
Table 5 . Cross-reactivity of some compounds structurally
Download Table | Cross-reactivity of some compounds structurally related to DBP by hapten coated icELISA. from publication: An Immunoassay for Dibutyl Phthalate Based on Direct Hapten Linkage to
Sanford Guide: Penicillin/Cephalosporin Cross-Reactivity
Healthcare professionals often overestimate cross-reactivity between Penicillins and Cephalosporins. The mechanism of cross-reactivity was previously believed to be related to a common β-lactam ring, but new evidence suggests it is instead related to the sharing of identical R-group side chains.
- What is the chemical composition of DBP?
- The chemical compositions of the DBPs are strongly dependent on the disinfectants and the disinfection parameters (dose, contact time, water pH and temperature, etc.) and the source water characteristics (NOM composition, micro-pollutants, and inorganic ions (bromide, iodide, ammonia, etc.)).
- How does disinfection optimization affect DBP formation?
- Thus, disinfection optimization (disinfectant, dose, and reaction time) plays significant roles in control of DBPs formation as well. FC is the most common disinfectant for water treatment at present, due to its high effectiveness, low cost, and ease of prepare.
- How does oxidation affect DBP?
- It is expected to decrease the DBPsFP via combining conventional and advanced treatment processes, while an excessive oxidation may accelerate the destruction of molecular structure and enhance the DBP formation.
- What happens during production of DBP?
- production of DBP usu-ally takes place in closed systems. However, both inhalation and dermal exposure may occur during the production of DBP. Such exposures may occur from "breathing" of the system at elevated temperatures, dur ng system leaks, filling of road and rail tankers, drumming, cleaning of tanks,
- What are the main end-product uses of DBP?
- oducts, etc., but it is not possible to point at some specific major end-product uses. Current uses of DBP are s follows: Products of PV . The specific products are not known but garden hoses, floor coverings and tomotive uses have been mentioned; Products with epoxy res ns. Probably some fibreglass products
- What are the research directions of DBP research in China?
- With respect to DBP research field, accurately qualitatively and quantitatively evaluating the formation level of known DBPs in drinking waters, optimizing the treatment process to minimize the formation of DBPs, and carry out frontier identification on unknown DBPs are currently the main research directions in China. Fig. 2.
