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2-(2-Aminothiazole-4-yl)-2-methoxyiminoacetic acid

Also known as: 2-(2-Aminothiazole-4-yl)-2-(Z)-methoxyiminoacetic acid, syn-Thiazoximic acid, Thiazoximic acid, ATMAA, ATMA, Aminothiaoximinoacid, Aminothiaoximoacid, Cefepime Impurity 4, 2-Amino-α-(methoxyimino)-4-thiazoleacetic acid, (Z)-2-(2-Amino-4-thiazolyl)-2-(methoxyimino)acetic acid, 4-Thiazoleacetic acid, 2-amino-α-(methoxyimino)-, (αZ)-, MFCD00071528, EINECS 265-957-0

2-(2-Aminothiazole-4-yl)-2-methoxyiminoacetic acid (CAS 65872-41-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H7N3O3S and a molecular weight of 201.203 g/mol. Key properties include a melting point of 192 °C (dec.)(lit.), a boiling point of 425.1±37.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 210.9±26.5 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
65872-41-5
Jingsj CID
J-11481-8
Molecular Formula
C6H7N3O3S
Molecular Weight
201.203 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point192 °C (dec.)(lit.)
Boiling Point425.1±37.0 °C at 760 mmHg
Density1.7±0.1 g/cm3
Flash Point210.9±26.5 °C
Exact Mass201.020813
PSA126.04000
LogP-0.11
Vapor Pressure0.0±1.1 mmHg at 25°C
Refractive Index1.689
Additional Property0.6 g/100 mL (20 ºC)

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2934100090
Summary2934100090 other compounds containing an unfused thiazole ring (whether or not hydrogenated) in the structure VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 2-(2-Aminothiazole-4-yl)-2-methoxyiminoacetic acid?

The CAS number of 2-(2-Aminothiazole-4-yl)-2-methoxyiminoacetic acid is 65872-41-5.

What are the molecular formula and molecular weight of 2-(2-Aminothiazole-4-yl)-2-methoxyiminoacetic acid?

2-(2-Aminothiazole-4-yl)-2-methoxyiminoacetic acid has molecular formula C6H7N3O3S and molecular weight 201.203 g/mol.

Is 2-(2-Aminothiazole-4-yl)-2-methoxyiminoacetic acid hazardous?

2-(2-Aminothiazole-4-yl)-2-methoxyiminoacetic acid has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of 2-(2-Aminothiazole-4-yl)-2-methoxyiminoacetic acid?

For 2-(2-Aminothiazole-4-yl)-2-methoxyiminoacetic acid, Upstream Products: Ethyl 2-(2-aminothiazol-4-yl)-2-methoxyiminoacetate, Metam sodium, (2Z)-2-{2-[(Chloroacetyl)amino]-1,3-thiazol-4-yl}-2-(methoxyimino)acetic acid; Downstream Products: O,O-Diethylphosphoryl (Z)-2-(2-aminothiazol-4-yl)-2-methoxyiminoacetate, (2Z)-2-{2-[(Chloroacetyl)amino]-1,3-thiazol-4-yl}-2-(methoxyimino)acetic acid, 1-[2-(Z)-Methoxyimino-2-(2-aminothiazol-4-yl)acetoxy]benzotriazole.

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

Last updated:

How to cite: Jingsj. "2-(2-Aminothiazole-4-yl)-2-methoxyiminoacetic acid (CAS 65872-41-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-11481-8 (accessed 2026-11-09).

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