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1,2,4-????

1,2,4-????
1,2,4-???? ??? ???
?? ??:
288-88-0
???:
1,2,4-????
???(??):
1,2,4-????;????;1,2,4-?????
???:
1,2,4-Triazole
???(??):
TRIAZOLE;1H-1,2,4-TRIAZOLE;4H-1,2,4-triazole;1,2,4-1H-TRIAZOLE;1,2,4-Triazol;PYRRODIAZOLE;1H-1,2,4-Triazol;1,2,4-Triazole,99%;TA-4;TAR4
CBNumber:
CB2277901
???:
C2H3N3
??? ??:
69.07
MOL ??:
288-88-0.mol
MSDS ??:
SDS

1,2,4-???? ??

???
119-121 °C (lit.)
?? ?
260 °C (lit.)
??
1.15 g/cm3 (130℃)
???
0.215Pa at 20℃
???
1.4854 (estimate)
???
140 °C
?? ??
Store below +30°C.
???
547??/??
??? ??
??? ?? ? ????
?? ?? (pKa)
2.27(at 20℃)
??
???
??????(pH)
8 (10g/l, H2O, 20℃)
???
1250g/L(20℃)
Merck
14,9605
BRN
104767
InChIKey
NSPMIYGKQJPBQR-UHFFFAOYSA-N
LogP
-0.76 at 25℃
CAS ??????
288-88-0(CAS DataBase Reference)
NIST
1H-1,2,4-Triazole(288-88-0)
EPA
1,2,4-Triazole (288-88-0)
??
  • ?? ? ?? ??
  • ?? ? ???? ?? (GHS)
??? ?? Xn,Xi,C
?? ???? ?? 22-36-63-34
????? 36/37-45-36/37/39-27-26
WGK ?? 2
RTECS ?? XZ3806000
?? ?? ?? Irritant
TSCA Yes
HS ?? 29339990
?? ?? ??? 288-88-0(Hazardous Substances Data)
?? LD50 orally in Rabbit: 1650 mg/kg LD50 dermal Rabbit 3129 - 4200 mg/kg
???? ?? KE-34007
????(GHS): GHS hazard pictogramsGHS hazard pictograms
?? ?: Warning
??·?? ??:
?? ??·?? ?? ?? ?? ?? ?? ? ?? ?? P- ??
H302 ??? ??? ?? ?? ?? - ?? ?? 4 ?? GHS hazard pictograms P264, P270, P301+P312, P330, P501
H319 ?? ?? ??? ??? ?? ? ?? ?? ??? ?? ?? 2A ?? GHS hazard pictograms P264, P280, P305+P351+P338,P337+P313P
??????:
P201 ?? ? ?? ???? ?????.
P202 ?? ?? ?? ??? ?? ???? ??? ???? ???.
P264 ?? ??? ?? ??? ????.
P264 ?? ??? ?? ??? ????.
P301+P312 ??? ???? ??? ????(??)? ??? ????.
P305+P351+P338 ?? ??? ? ?? ?? ???? ????. ???? ?????? ?????. ?? ????.
P308+P313 ?? ?? ??? ???? ???? ??· ??? ????.
NFPA 704
1
2 0

1,2,4-???? MSDS


1,2,4-1H-Triazole

1,2,4-???? C??? ??, ??, ??

??? ??

white crystalline powder and flakes

??

1,2,4-Triazole is present in a large variety of fungicides as C14-demethylase-inhibitors. In addition they are used in synthetic chemical reactions such as the design and preparation of ghrelin receptor ligand antagonists, like JMV 2959.

??

1,2,4-triazole is a chemical substance with molecular formula C2H3N3, molecular weight 69.07 and CAS No. 288-88-0. Colorless acicular crystal, soluble in water and ethanol. 1H-1,2,4-triazole is a 1,2,4-triazole. It is a tautomer of a 3H-1,2,4-triazole and a 4H-1,2,4-triazole.
Triazole is an aromatic five membered heterocyclic compound. Its unique structure is conducive to the formation of a variety of non covalent bonds and is easy to promote the binding of proteins, enzymes and receptors, thus showing a wide range of biological pharmacological activities, such as anticancer, antispasmodic, antibacterial, anti HIV. In particular, 1,2,3-triazole has strong thermal stability and acid-base stability, and is not sensitive to redox, hydrolysis and enzymatic degradation. It is often used as a pharmacodynamic group in drug synthesis.

Purification Methods

Crystallise 1,2,4-triazole from EtOH, H2O, EtOAc (m 120.5-121o), or EtOH/*C6H6. The hydrochloride has m 170o, and the picrate has m 163-164o (from H2O or CHCl3). [Barszcz et al. J Chem Soc, Dalton Trans 2025 1986]. [Beilstein 26 H 13, 26 II 6, 26 III/IV 35.]

1,2,4-???? ?? ?? ? ???

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