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Chloramine-T
CAS number: 127-65-1
Chloramine T is an organic sodium salt derivative of toluene-4-sulfonamide with a chloro substituent in place of an amino hydrogen.

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Reagents and conditions: (a) Pd(PPh3)4, (SnBu3)2, toluene, reflux, 22 h; (b) NaI, chloramine-T, 94% EtOAc, 4% DMF, 1% AcOH, 1% H2O, room temp, 30 min, Na2S3O5; (c) NaOH, 1 h; (d) 3 mCi Na125I and chloramine-T in a mixture of 94% EtOAc, 4% DMF, 1% AcOH, and 1% H2O, room temp, 30 min, Na2S3O5.
Reagents and conditions: (a) Pd(PPh3)4, (SnBu3)2, toluene, reflux, 22 h; (b) NaI, chloramine-T, 94% EtOAc, 4% DMF, 1% AcOH, 1% H2O, room temp, 30 min, Na2S3O5; (c) NaOH, 1 h; (d) 3 mCi Na125I and chloramine-T in a mixture of 94% EtOAc, 4% DMF, 1% AcOH, and 1% H2O, room temp, 30 min, Na2S3O5.
DOI: /10.1021/jm1006325

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Related Questions and Answers

Q: What insights did the study provide regarding the nanoleakage in chemical-cured adhesives exposed to chloramine-T?
A: A study observed increased nanoleakage in the chemical-cured adhesive Bondmer Lightless after exposure to chloramine-T, with silver deposits appearing along the adhesive-dentin interface and within dentin tubules. This suggests that chloramine-T may compromise the integrity of the adhesive-dentin interface, leading to potential weaknesses in the bond.
Q: What are the effects of chloramine-T on the mechanical properties of dental adhesives?
A: A study found that chloramine-T has no significant effect on the hardness or elastic modulus of the tested adhesives. However, it does reduce the bond strength of chemical-cured adhesives by interfering with the interaction between the adhesive resin and dentin, indicating that chloramine-T primarily affects the bonding performance rather than the intrinsic mechanical properties of the adhesives.
Q: How does short-term exposure to chloramine-T solution affect the bonding performance of chemical-cured adhesives?
A: Short-term exposure to a 0.5% chloramine-T solution significantly reduces the microtensile bond strength (μTBS) of the chemical-cured adhesive Bondmer Lightless, decreasing it from 22.62 MPa to 12.87 MPa after a 5-minute immersion. This suggests that chloramine-T may interfere with the interaction and sealing between the adhesive resin and dentin in chemical-cured adhesives.