S-2-Benzothiazolyl 2-amino-alpha-(methoxyimino)-4-thiazolethiolacetate

Also known as: Ceftriaxone Impurity D, Ceftriaxone Impurity 4, MAEM, (Z)-S-2-Benzothiazolyl 2-amino-alpha-(methoxyimino)-4-thiazolethiolacetate, 2-Mercaptobenzothiazolyl (2-Aminothiazolyl)-Methoxyimino Acetate, S-(Benzothiazol-2-yl) (Z)-(2-aminothiazol-4-yl)(methoxyimino)thioacetate, S-2-Benzothiazolyl 2-amino-α-(methoxyimino)-4-thiazolethiolacetate, EINECS 279-540-6, MFCD00134182

S-2-Benzothiazolyl 2-amino-alpha-(methoxyimino)-4-thiazolethiolacetate (CAS 80756-85-0) is a compound in the Esters category listed in the Jingsj chemical database. It has the molecular formula C13H10N4O2S3 and a molecular weight of 350.439 g/mol. Key properties include a melting point of 128-130 °C(lit.), a boiling point of 563.2±42.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 294.4±27.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 80756-85-0
Jingsj CID: J-1117128-1
Molecular Formula: C₁₃H₁₀N₄O₂S₃
Molecular Weight: 350.439 g/mol
Category: Esters
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	128-130 °C(lit.)
Boiling Point	563.2±42.0 °C at 760 mmHg
Density	1.6±0.1 g/cm3
Flash Point	294.4±27.9 °C
Exact Mass	349.996582
PSA	172.24000
LogP	3.63
Vapor Pressure	0.0±1.5 mmHg at 25°C
Refractive Index	1.800

Customs & Trade Information

HS Code	2934200090
Summary	2934200090. other compounds containing in the structure a benzothiazole ring-system (whether or not hydrogenated), not further fused. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of S-2-Benzothiazolyl 2-amino-alpha-(methoxyimino)-4-thiazolethiolacetate?

The CAS number of S-2-Benzothiazolyl 2-amino-alpha-(methoxyimino)-4-thiazolethiolacetate is 80756-85-0.

What are the molecular formula and molecular weight of S-2-Benzothiazolyl 2-amino-alpha-(methoxyimino)-4-thiazolethiolacetate?

S-2-Benzothiazolyl 2-amino-alpha-(methoxyimino)-4-thiazolethiolacetate has molecular formula C13H10N4O2S3 and molecular weight 350.439 g/mol.

What are the upstream and downstream products of S-2-Benzothiazolyl 2-amino-alpha-(methoxyimino)-4-thiazolethiolacetate?

For S-2-Benzothiazolyl 2-amino-alpha-(methoxyimino)-4-thiazolethiolacetate, Downstream Products: Cefpodoxime Proxetil, Cefpodoxime, 2-(2-Aminothiazole-4-yl)-2-methoxyiminoacetic acid.

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

Last updated: 8/21/2026

How to cite: Jingsj. "S-2-Benzothiazolyl 2-amino-alpha-(methoxyimino)-4-thiazolethiolacetate (CAS 80756-85-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1117128-1 (accessed 2026-11-06).

Data for reference only; verify product details with suppliers before purchase.