Chemical Properties:
Package: Bottle, Aluminium foil bag, 25kg/Cardboard Drum, or according to customer's requirement. Storage Condition: Store in sealed containers at cool and dry place; Protect from light and moisture.Manufacturer Supply, High Purity, Commercial Production Chemical Name: S-(2-Benzothiazolyl) (Z)-2-(2-Amino-4-thiazolyl)-2-(methoxyimino)thioacetate Synonyms: MAEM CAS: 80756-85-0| Item | Specifications |
| Appearance | Pale Yellow Crystalline Powder |
| Assay / Analysis Method | ≥99.0% (Titration) |
| Purity / Analysis Method | ≥99.0% (HPLC) |
| Melting Point | 128.0~134.0℃ |
| Water (K.F) | ≤0.20% |
| Loss on Drying | ≤0.50% |
| Absorbance | ≤0.138 (1% Tetrahydrofuran,450nm) |
| Heavy Metals | ≤20ppm |
| Iron | ≤20ppm |
| Side Chain Acid | ≤0.30% |
| Free Acid | ≤0.45% |
| Mercaptobenzothiazole M | ≤0.20% |
| DM | ≤0.30% |
| AT | ≤0.30% |
| Sulphate | ≤0.30% |
| Solubility | Clear, No Obvious Impurity (1g Dissolve in 20ml THF) |
| Clarity | ≤0.5# |
| Total Impurities | ≤2.0% |
| Test Standard | Enterprise Standard |
| Usage | Cephalosporin Pharmaceutical Intermediate; Ceftriaxone, Cefotaxime, Cefpodoxime, Cefetamet, etc. |
Description:
Specifications:
Package & Storage:
| Chemical Name | S-(2-Benzothiazolyl) (Z)-2-(2-Amino-4-thiazolyl)-2-(methoxyimino)thioacetate |
| Synonyms | MAEM; S-2-Benzothiazolyl 2-amino-alpha-(methoxyimino)-4-thiazolethiolacetate; (Benzothiazol-2-yl)-2-(2 -Amino-Thiazol-4-yl) -(Z)-2-Methoxyimino Thioacetate |
| CAS Number | 80756-85-0 |
| CAT Number | RF-PI564 |
| Stock Status | In Stock, Production Scale Up to Tons |
| Molecular Formula | C13H10N4O2S3 |
| Molecular Weight | 350.43 |
| Brand | Ruifu Chemical |
Advantages:
FAQ:
Application:
S-(2-Benzothiazolyl) (Z)-2-(2-Amino-4-thiazolyl)-2-(methoxyimino)thioacetate (CAS: 80756-85-0), Synonyms: MAEM, is a Cephalosporin pharmaceutical intermediate, key intermediate for the synthesis of Ceftriaxone Sodium, Cefotaxime, Cefpodoxime, Cefetamet, etc. MAEM is used in the synthesis of Cefotaxime and related derivatives, such as: Ceftriaxone. MAEM is an advanced intermediate that is part of the side chain in beta-lactam antibiotics such as Cefmenoxime and Ceftizoxime.
