7-Aminocephalosporanic Acid, also named as 7beta-aminocephalosporanic acid, is the alpha,beta-unsaturated monocarboxylic acid that is the active nucleus for the synthesis of cephalosporins and intermediates. It derives from a cephalosporanic acid. It is a tautomer of a 7beta-aminocephalosporanic acid zwitterion. (Source: ChEBI)
|Product Name: ||7-Aminocephalosporanic acid |
|Synonyms: ||Cefazolin Sodium EP Impurity H (7-Aminocephalosporanic Acid); Cephalothin Impurity C(EP)（7-ACA; Aminocephalosporanic; Cefazolin EP Impurity H; 7-ACA Impurity; Ceftriaxone Impurity 18;7-AMinocephalosporanic acid 98% |
|CAS: ||957-68-6 |
|MF: ||C10H12N2O5S |
|MW: ||272.28 |
|EINECS: ||213-485-0 |
|Product Categories: ||Intermediates & Fine Chemicals; Pharmaceuticals; Organic acids; API intermediates; API |
|Melting point ||>300 °C (lit.) |
|alpha ||94 º (c=0.5, KH2PO4, PH 7) |
|Boiling point ||560.6±50.0 °C(Predicted) |
|density ||1.4667 (rough estimate) |
|refractive index ||1.5650 (estimate) |
|storage temp. ||2-8°C |
|pka ||2.59±0.50(Predicted) |
|form ||Crystalline Powder |
|color ||Off-white to beige |
|optical activity ||[α]19/D +90°, c = 0.5 in KH2PO4/trace NaOH |
|Water Solubility ||409.6mg/L(22.99 ºC) |
|Merck ||14,434 |
|BRN ||622638 |
|Stability: ||Hygroscopic |
|Chemical Properties ||Crystals. |
|Uses ||Pharmaceutical intermediates. It is the starting material of many semi-synthetic cephalosporin. A variety of semi-synthetic cephalosporin industrial production is through fermentation to obtain cephalosporin C. Then obtain nucleus 7-ACA through chemical cleavage , and then the preparation is fininshed in chemically modified way . |
|Chemical Properties ||Off-white to beige crystalline powder |
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