(S)-5-(tert-butoxycarbonyl)-5-azaspiro[2.4]heptane-6-carboxylic acid

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Chemical Name:   (S)-5-(tert-butoxycarbonyl)-5-azaspiro[2.4]heptane-6-carboxylic acid
CAS.NO:1129634-44-1
Synonyms:(6S)-5-[(2-methylpropan-2-yl)oxycarbonyl]-5-azaspiro[2.4]heptane-6-carboxylic acid

Molecular Formula: C12H19NO4
Molecular Weight:241.28400

Physical and Chemical Properties:
Density: 1.2±0.1 g/cm3
Boiling point: 377.4±35.0 °C at 760 mmHg
Melting point: /
Flash point: 182.1±25.9 °C
Refractive index: 1.536

Specification:
Appearance:Off-White Solid
Purity:≥99.0%
Identification:
A.H-NMR:Comply with the structure
B.LC-MS:Comply with the structure
C.The IR spectrum of sample should be identical with that of reference standard
Appearance:Meets the requirements.
HPLC:
Unspecified impurities: for each impurity :≤0.20%
Total Impurity:≤1.0%
Loss on drying:≤0.5%
Heavy metals:≤10 ppm
Water:≤1.0%

Packing:
 25kg / drum
Storage:Preserve in well-closed, light-resistant and airtight containers.
Application: Intermediates of Ledipasvir CAS:1256388-51-8

(S)-5-(tert-butoxycarbonyl)-5-azaspiro[2.4]heptane-6-carboxylic acid


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