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H-Pyr-OH (L-Pyroglutamic acid) |
is a Star Product of
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General information |
Registration name: H-Pyr-OH (L-Pyroglutamic acid) |
Other product names:
(S)-2-Pyrrolidone-5-carboxylic acid (S)-(-)-2-Pyrrolidinone-5-carboxylic acid H-L-Pyr-OH Pyr-OH H-Pyr-OH L-Pyroglutamic acid L-5-Oxo-pyrrolidine carboxylic acid
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CAS number 98-79-3 |
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EINECS: 202-700-3 |
Formula: C5H7NO3 |
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Detailed information on the Star Product |
Appearance: | White crystalline powder
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Specific rotation(a)D20 (C=5 H2O): | -11.0 to -12.0º
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Chloride(C1): | Not more than 0.02%
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Ammonium(NH4): | Not more than 0.02%
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Sulfate(SO4): | Not more than 0.02%
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Heavy metals(Pb): | Not more than 10ppm
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Iron(Fe): | Not more than 10ppm
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Arsenic(As2O3): | Not more than 1 PPM
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Loss on drying: | Not more than 0.5%
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Residue on ignition: | Not more than 0.1%
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Assay: | 99.0-101.0% |
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