(S)-tert-Butyl (4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]thiazepin-3-yl)carbamate

(S)-(4-氧代-2,3,4,5-四氢苯并[b][1,4]硫氮杂卓-3-基)氨基甲酸叔丁酯

Also known as: Carbamic acid, N-[(3S)-2,3,4,5-tetrahydro-4-oxo-1,5-benzothiazepin-3-yl]-, 1,1-dimethylethyl ester, tert-Butyl N-[(3S)-4-oxo-2,3,4,5-tetrahydro-1,5-benzothiazepin-3-yl]carbamate, (S)-3-(tert-Butoxycarbonylamino)-2,3-dihydro-1,5-benzothiazepin-4(5H)-one

(S)-tert-Butyl (4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]thiazepin-3-yl)carbamate (CAS 440634-11-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C14H18N2O3S and a molecular weight of 294.36900 g/mol. It is also known as Carbamic acid, N-[(3S)-2,3,4,5-tetrahydro-4-oxo-1,5-benzothiazepin-3-yl]-, 1,1-dimethylethyl ester, tert-Butyl N-[(3S)-4-oxo-2,3,4,5-tetrahydro-1,5-benzothiazepin-3-yl]carbamate and (S)-3-(tert-Butoxycarbonylamino)-2,3-dihydro-1,5-benzothiazepin-4(5H)-one. Key properties include a boiling point of 491.5ºC at 760 mmHg, a density of 1.26g/cm3 and a flash point of 251ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
440634-11-7
Jingsj CID
J-858231-7
Molecular Formula
C14H18N2O3S
Chinese Name
(S)-(4-氧代-2,3,4,5-四氢苯并[b][1,4]硫氮杂卓-3-基)氨基甲酸叔丁酯
Molecular Weight
294.36900 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point491.5ºC at 760 mmHg
Density1.26g/cm3
Flash Point251ºC

Frequently Asked Questions

What is the CAS number of (S)-tert-Butyl (4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]thiazepin-3-yl)carbamate?

The CAS number of (S)-tert-Butyl (4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]thiazepin-3-yl)carbamate is 440634-11-7.

What are the molecular formula and molecular weight of (S)-tert-Butyl (4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]thiazepin-3-yl)carbamate?

(S)-tert-Butyl (4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]thiazepin-3-yl)carbamate has molecular formula C14H18N2O3S and molecular weight 294.36900 g/mol.

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

Last updated:

How to cite: Jingsj. "(S)-tert-Butyl (4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]thiazepin-3-yl)carbamate (CAS 440634-11-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-858231-7 (accessed 2026-10-25).

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