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CAS RN: 957-68-6 | Product Number: A1266
7-Aminocephalosporanic Acid
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Purity: >97.0%(T)(HPLC)
Synonyms:
- 7-ACA
Product Documents:
| Size | Unit Price | Same Day | 2-3 Business Days | Other Lead Time |
Shipping Information
|
|---|---|---|---|---|---|
| 5G |
₩149,900
|
≥40 | 0 | It can be shipped in about 2 weeks after ordering | |
| 25G |
₩523,600
|
12 | 20 | It can be shipped in about 2 weeks after ordering |
* Please contact our distributor of SEJIN CI Co., Ltd.
if you would like to purchase TCI products. The above prices do not include freight cost, customs charge and other charges to the destination. SEJIN CI Co., Ltd. (Phone: 02-2655-2480 / email:
sales@sejinci.co.kr)
* The storage conditions are subject to change without notice.
* The storage conditions are subject to change without notice.
| Product Number | A1266 |
| Purity / Analysis Method | >97.0%(T)(HPLC) |
| Molecular Formula / Molecular Weight | C__1__0H__1__2N__2O__5S = 272.28 |
| Physical State (20 deg.C) | Solid |
| Storage Temperature | Room Temperature (Recommended in a cool and dark place, <15°C) |
| CAS RN | 957-68-6 |
| PubChem Substance ID | 87562732 |
| Merck Index (14) | 434 |
| MDL Number | MFCD00005177 |
Specifications
| Appearance | White to Light yellow to Light orange powder to crystal |
| Purity(HPLC) | min. 97.0 area% |
| Purity(Neutralization titration) | min. 97.0 % |
| Specific rotation [a]20/D | +88.0 to +94.0 deg(C=0.5, buffer sol.pH7.0 KH2PO4) |
Properties (reference)
| Specific Rotation | 90° (C=0.5,buffer sol. pH7.0 KH2PO4) |
GHS
| Pictogram |
|
| Signal Word | Danger |
| Hazard Statements | H315 : Causes skin irritation. H319 : Causes serious eye irritation. H317 : May cause an allergic skin reaction. H334 : May cause allergy or asthma symptoms or breathing difficulties if inhaled. |
| Precautionary Statements | P501 : Dispose of contents/ container to an approved waste disposal plant. P261 : Avoid breathing dust/ fume/ gas/ mist/ vapors/ spray. P272 : Contaminated work clothing should not be allowed out of the workplace. P264 : Wash skin thoroughly after handling. P280 : Wear protective gloves/ eye protection/ face protection. P284 : Wear respiratory protection. P302 + P352 : IF ON SKIN: Wash with plenty of water. P342 + P311 : If experiencing respiratory symptoms: Call a POISON CENTER/doctor. P337 + P313 : If eye irritation persists: Get medical advice/ attention. P305 + P351 + P338 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P362 + P364 : Take off contaminated clothing and wash it before reuse. P304 + P340 : IF INHALED: Remove person to fresh air and keep comfortable for breathing. P333 + P313 : If skin irritation or rash occurs: Get medical advice/ attention. |
Related Laws:
Transport Information:
| H.S.code* | 2934.99-000 |
Application
7-Aminocephalosporanic Acid (7-ACA): a Starting Compound for Semisynthetic Cephalosporin Antibiotics.
The enzymatic conversion of cephalosporin C gives 7-aminocephalosporanic acid (7-ACA) [A1266], which is used as a starting compound for semisynthetic cephalosporin antibiotics. Modification of 7-ACA at the 3- and 7-positions gives rise to a number of third and fourth semisynthetic cephalosporin antibiotics that are significantly generally more active against Gram-negative bacteria than first and second generation ones. Differences in side chain structure at the 7-position directly affect their antibiotic activity, whereas modifications made at the 3-position influence their metabolism and pharmacokinetic properties of the drugs.
References
- Development of the semi-synthetic penicillins and cephalosporins
- Enzymatic Deprotection of the Cephalosporin 3’-Acetoxy Group Using Candida antarctica Lipase B
- Synthesis and antibacterial properties of 7-[2-(3-substituted-5-isoxazolyl)-2-methoxyiminoacetamidojcephalosporanic acid derivatives
- Synthesis and biological activity of novel 3-(2-propenyl)-cephalosporins. I.
- Studies on orally active cephalosporinsi. Synthesis and structure-activity relationships of new 3-substituted carbamoyloxymethyl cephalosporins
- Antimicrobial Agents: Antibacterials and Antifungals (a book review)
PubMed Literature
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