2-Mercaptobenzothiazolyl (Z)-2-(2-aminothiazol-4-yl)-2-(tert-butoxycarbonylmethoxyimino)acetate

头孢克肟侧链酸活性酯

Also known as: BAEM, FAEM, MICA ester, DAEM, (S)-2-Benzothiazolyl (Z)-2-(2-aminothiazole-4-yl)-2-methoxycarbonylmethoxyiminothioacetate, 2-Mercaptobenzothiazoyl-(Z)-2-(2-Aminothiazole-4-yl)-2-(tert-butoxycarbonylmethoxyimino)acetate, 2-(2-Aminothiazol-4-yl)-2-(tert-butoxycarbonylmethoxyimino)thioacetic acid S-(benzothiazol-2-yl) ester, tert-Butyl ({[(1E)-1-(2-amino-1,3-thiazol-4-yl)-2-(1,3-benzothiazol-2-ylsulfanyl)-2-oxoethylidene]amino}oxy)acetate, Acetic acid, 2-[[(Z)-[1-(2-amino-4-thiazolyl)-2-(2-benzothiazolylthio)-2-oxoethylidene]amino]oxy]-, 1,1-dimethylethyl ester

2-Mercaptobenzothiazolyl (Z)-2-(2-aminothiazol-4-yl)-2-(tert-butoxycarbonylmethoxyimino)acetate (CAS 89605-09-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C18H18N4O4S3 and a molecular weight of 450.55500 g/mol. It is also known as BAEM, FAEM and MICA ester. Key properties include a boiling point of 617.9ºC at 760 mmHg, a density of 1.49g/cm3 and a flash point of 327.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
89605-09-4
Jingsj CID
J-1061853-4
Molecular Formula
C18H18N4O4S3
Chinese Name
头孢克肟侧链酸活性酯
Molecular Weight
450.55500 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point617.9ºC at 760 mmHg
Density1.49g/cm3
Flash Point327.5ºC

Frequently Asked Questions

What is the CAS number of 2-Mercaptobenzothiazolyl (Z)-2-(2-aminothiazol-4-yl)-2-(tert-butoxycarbonylmethoxyimino)acetate?

The CAS number of 2-Mercaptobenzothiazolyl (Z)-2-(2-aminothiazol-4-yl)-2-(tert-butoxycarbonylmethoxyimino)acetate is 89605-09-4.

What are the molecular formula and molecular weight of 2-Mercaptobenzothiazolyl (Z)-2-(2-aminothiazol-4-yl)-2-(tert-butoxycarbonylmethoxyimino)acetate?

2-Mercaptobenzothiazolyl (Z)-2-(2-aminothiazol-4-yl)-2-(tert-butoxycarbonylmethoxyimino)acetate has molecular formula C18H18N4O4S3 and molecular weight 450.55500 g/mol.

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

Last updated:

How to cite: Jingsj. "2-Mercaptobenzothiazolyl (Z)-2-(2-aminothiazol-4-yl)-2-(tert-butoxycarbonylmethoxyimino)acetate (CAS 89605-09-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1061853-4 (accessed 2026-10-25).

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