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Home> Encyclopedia >Anti-Allergic Agents>Pharmaceutical Intermediates>Organic Intermediate
7-Amino-3-methyl-3-cephem-4-carboxylic acid structure
7-Amino-3-methyl-3-cephem-4-carboxylic acid structure

7-Amino-3-methyl-3-cephem-4-carboxylic acid

Iupac Name:(6R,7R)-7-amino-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
CAS No.: 22252-43-3
Molecular Weight:214.239
Modify Date.: 2022-11-23 02:02
Introduction:

Off-White Powder


7beta-aminodeacetoxycephalosporanic acid is a cephem monocarboxylic acid derivative having a structure based on cephalosporanic acid, deacetoxylated and carrying a 7beta-amino group. It is a monocarboxylic acid and a cephalosporin. It derives from a cephalosporanic acid.

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1. Names and Identifiers
1.1 Name
7-Amino-3-methyl-3-cephem-4-carboxylic acid
1.2 Synonyms

(6R,7R)-7-Amino-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid 3-Methyl-7-aminoceph-3-em-4-carboxylic acid 3-Methyl-7-amino-Δ3-cephem-4-carboxylic acid 5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, 7-amino-3-methyl-8-oxo- 5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, 7-amino-3-methyl-8-oxo-, (6R,7R)- 5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, 7-amino-3-methyl-8-oxo-, (6R-trans)- 7-ADCA 7-Amino-3-deacetoxycephalosporanic acid 7-Amino-3-desacetoxycephalosporanic acid 7-Amino-3-methyl-3-cephen-4-carboxylic acid 7-Amino-3-methylcephalosporanic acid 7-Amino-3-methyl-Δ3-cephan-4-carboxylic acid 7-Amino-3-methyl-Δ3-cephem-4-carboxylic acid 7-Aminodeacetoxycephalexanic acid 7-Aminodeacetoxycephalosporanic acid 7-Aminodesacetoxycephalosporanic acid 7-β-Amino-3-methyl-3-cephem-4-carboxylic acid 7β-Amino-3-methylceph-3-em-4-carboxylic acid Cefadroxil EP Impurity B Cefadroxil EP Impurity B (Cephalexin Impurity B, 7-ADCA) Cefadroxil Related Compound B (25 mg) ((6R,7R)-7-amino-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid) Cefalexin EP Impurity B Cefazedone Impurity 13 Cephalexin EP Impurity B (Cephalexin Impurity B, 7-ADCA) Deacetoxycephalosporanic acid

1.3 CAS No.
22252-43-3
1.4 CID
33498
1.5 EINECS(EC#)
244-870-1
1.6 Molecular Formula
C8H10N2O3S (isomer)
1.7 Inchi
InChI=1S/C8H10N2O3S/c1-3-2-14-7-4(9)6(11)10(7)5(3)8(12)13/h4,7H,2,9H2,1H3,(H,12,13)/t4-,7-/m1/s1
1.8 InChkey
NVIAYEIXYQCDAN-CLZZGJSISA-N
1.9 Canonical Smiles
CC1=C(N2C(C(C2=O)N)SC1)C(=O)O
1.10 Isomers Smiles
CC1=C(N2[C@@H]([C@@H](C2=O)N)SC1)C(=O)O
2. Properties
2.1 Density
1.59
2.1 Melting point
234°C (dec.)
2.1 Boiling point
517.6°Cat760mmHg
2.1 Refractive index
104 ° (C=1, 1mol/L HCl)
2.1 Flash Point
266.8°C
2.1 Precise Quality
214.04100
2.1 PSA
108.93000
2.1 logP
0.22560
2.1 Solubility
Do you have solubility information on this product that you would like to share
2.2 Appearance
white to yellowish crystalline powder
2.3 Storage

2-8℃

2.4 Chemical Properties
Off-White Powder
2.5 Color/Form
Powder
2.6 pKa
3.04±0.50(Predicted)
2.7 Water Solubility
soluble in water (partly), 1M ammonium hydroxide (50 mg/ml), and DMSO (Sparingly).
2.8 Stability
Stable. Incompatible with strong oxidizing agents.
2.9 StorageTemp
2-8°C
3. Use and Manufacturing
3.1 Definition
ChEBI: A cephem monocarboxylic acid derivative having a structure based on cephalosporanic acid, deacetoxylated and carrying a 7beta-amino group. 7-Amino-3-methyl-3-cephem-4-carboxylic acid Preparation Products And Raw materials Preparation Products
3.2 GHS Classification
Signal: Danger
GHS Hazard Statements
Aggregated GHS information provided by 37 companies from 3 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Reported as not meeting GHS hazard criteria by 2 of 37 companies. For more detailed information, please visit ECHA C&L website

Of the 2 notification(s) provided by 35 of 37 companies with hazard statement code(s):

H317 (97.14%): May cause an allergic skin reaction [Warning Sensitization, Skin]
H334 (97.14%): May cause allergy or asthma symptoms or breathing difficulties if inhaled [Danger Sensitization, respiratory]

Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown.

Precautionary Statement Codes
P261, P272, P280, P285, P302+P352, P304+P341, P321, P333+P313, P342+P311, P363, and P501
3.3 Produe Method

3.4 Usage
A metabolite of Cephalexin (C256800).
4. Safety and Handling
4.1 Hazard Codes
Xn
4.1 Risk Statements
R42/43
4.1 Safety Statements
S36
4.1 Hazard Declaration
H317-H334
4.1 RIDADR
NONH for all modes of transport
4.1 Caution Statement
P261-P280-P342 + P311
4.1 WGK Germany
3
4.1 Specification

The 7-Aminodesacetoxycephalosporanic acid, with the CAS registry number 22252-43-3, has the IUPAC name of 7-amino-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid. For being a kind of white to yellowish crystalline powder, it is incompatible with strong oxidizing agents. And its product categories are including Various Metabolites and Impurities; Antibiotics for Research and Experimental Use; beta-Lactams (Antibiotics for Research and Experimental Use); Biochemistry; Intermediates & Fine Chemicals; Metabolites & Impurities. As to its usage, it is usually applied as the pharmaceutic intermediate, such as the metabolite of Cephalexin.

The physical properties of this chemical are as follows: (1)ACD/LogP: -0.81; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -3.13; (4)ACD/LogD (pH 7.4): -4.41; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 1; (8)ACD/KOC (pH 7.4): 1; (9)#H bond acceptors: 5; (10)#H bond donors: 3; (11)#Freely Rotating Bonds: 2; (12)Polar Surface Area: 75.15; (13)Index of Refraction: 1.697; (14)Molar Refractivity: 51.69 cm3; (15)Molar Volume: 134 cm3; (16)Polarizability: 20.49 ×10-24 cm3; (17)Surface Tension: 81.7 dyne/cm; (18)Density: 1.59 g/cm3; (19)Flash Point: 266.8 °C; (20)Enthalpy of Vaporization: 86.44 kJ/mol; (21)Boiling Point: 517.6 °C at 760 mmHg; (22)Vapour Pressure: 4.18E-12 mmHg at 25°C; (23)Exact Mass: 214.041213; (24)MonoIsotopic Mass: 214.041213; (25)Topological Polar Surface Area: 109; (26)Heavy Atom Count: 14; (27)Complexity: 353.

When you are dealing with this chemical, you should be careful. For being a kind of harmful chemical, it may cause damage to health. This chemical is irritating to eyes, respiratory system and skin and may cause sensitization by inhalation and skin contact. If by inhalation, in contact with skin and if swallowed, it will harmful. Therefore, you should wear suitable protective clothing. If in case of contact with eyes, rinse immediately with plenty of water and seek medical advice.

Additionally, you could obtain the molecular structure by converting the following datas:
(1)Canonical SMILES: CC1=C(N2C(C(C2=O)N)SC1)C(=O)O
(2)InChI: InChI=1S/C8H10N2O3S/c1-3-2-14-7-4(9)6(11)10(7)5(3)8(12)13/h4,7H,2,9H2,1H3,(H,12,13)
(3)InChIKey: NVIAYEIXYQCDAN-UHFFFAOYSA-N 

5. MSDS

2.Hazard identification

2.1 Classification of the substance or mixture

Not classified.

2.2 GHS label elements, including precautionary statements

Pictogram(s) No symbol.
Signal word

No signal word.

Hazard statement(s)

none

Precautionary statement(s)
Prevention

none

Response

none

Storage

none

Disposal

none

2.3 Other hazards which do not result in classification

none

8. Other Information
8.0 Mesh Entry Terms
7-ADCA
8.1 Usage
7-Aminodesacetoxycephalosporanic acid is the Cephalexin metabolite. It is a Potent inhibitor of bacterial cell-wall enzyme. It is used in the synthesis of cephalosporins and for bioconversion studies.
9. Computational chemical data
  • Molecular Weight: 214.239g/mol
  • Molecular Formula: C8H10N2O3S
  • Compound Is Canonicalized: True
  • XLogP3-AA: null
  • Exact Mass: 214.04121336
  • Monoisotopic Mass: 214.04121336
  • Complexity: 353
  • Rotatable Bond Count: 1
  • Hydrogen Bond Donor Count: 2
  • Hydrogen Bond Acceptor Count: 5
  • Topological Polar Surface Area: 109
  • Heavy Atom Count: 14
  • Defined Atom Stereocenter Count: 2
  • Undefined Atom Stereocenter Count: 0
  • Defined Bond Stereocenter Count: 0
  • Undefined Bond Stereocenter Count: 0
  • Isotope Atom Count: 0
  • Covalently-Bonded Unit Count: 1
  • CACTVS Substructure Key Fingerprint: AAADccBzMABAAAAAAAAAAAAAAABYAAAAAAAgAAAAAAAQAAAAAAAAHgQQCAAADCjFwASCCANAAgiIAgXQWAAAAABAABAACIGIAEACRAggACAUEAAAFgCwEQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
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