1,8-Diazabicyclo[5.4.0]undec-7-ene 4-methylbenzenesulfonate

1,8-二氮杂二环[5.4.0]十一碳-7-烯对甲苯磺酸盐

Also known as: 2,3,4,6,7,8,9,10-Octahydropyrimido[1,2-a]azepine monotosylate, 2,3,4,6,7,8,9,10-Octahydro-1H-pyrimido[1,2-a]azepin-5-ium 4-methylbenzenesulfonate, DBU p-toluenesulfonate, 1,8-Diazabicyclo[5.4.0]undec-7-ene p-toluenesulfonate, 1,8-Diazabicyclo[5.4.0]undec-7-ene 4-toluenesulfonate, Pyrimido[1,2-a]azepine, 2,3,4,6,7,8,9,10-octahydro-, mono(4-methylbenzenesulfonate), EINECS 257-164-3, MFCD02093621

1,8-Diazabicyclo[5.4.0]undec-7-ene 4-methylbenzenesulfonate (CAS 51376-18-2) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C16H24N2O3S and a molecular weight of 324.43800 g/mol. It is also known as 2,3,4,6,7,8,9,10-Octahydropyrimido[1,2-a]azepine monotosylate, 2,3,4,6,7,8,9,10-Octahydro-1H-pyrimido[1,2-a]azepin-5-ium 4-methylbenzenesulfonate and DBU p-toluenesulfonate. Key properties include a melting point of 70.9-90.7ºC(lit.) and a boiling point of 540.5ºC at 760mmHg. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
51376-18-2
Jingsj CID
J-10931-4
Molecular Formula
C16H24N2O3S
Chinese Name
1,8-二氮杂二环[5.4.0]十一碳-7-烯对甲苯磺酸盐
Molecular Weight
324.43800 g/mol
Category
Solvents
Last updated
8/21/2026

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Physicochemical Properties

Melting Point70.9-90.7ºC(lit.)
Boiling Point540.5ºC at 760mmHg

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 1,8-Diazabicyclo[5.4.0]undec-7-ene 4-methylbenzenesulfonate?

The CAS number of 1,8-Diazabicyclo[5.4.0]undec-7-ene 4-methylbenzenesulfonate is 51376-18-2.

What are the molecular formula and molecular weight of 1,8-Diazabicyclo[5.4.0]undec-7-ene 4-methylbenzenesulfonate?

1,8-Diazabicyclo[5.4.0]undec-7-ene 4-methylbenzenesulfonate has molecular formula C16H24N2O3S and molecular weight 324.43800 g/mol.

Is 1,8-Diazabicyclo[5.4.0]undec-7-ene 4-methylbenzenesulfonate hazardous?

1,8-Diazabicyclo[5.4.0]undec-7-ene 4-methylbenzenesulfonate has GHS signal word Warning.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "1,8-Diazabicyclo[5.4.0]undec-7-ene 4-methylbenzenesulfonate (CAS 51376-18-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-10931-4 (accessed 2026-10-26).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.