α-酮戊二酸二鈉鹽二水合物（α-Ketoglutaric acid disodium salt），CAS：305-72-6 為白色粉末，常用作GOT/GPT天門冬氨酸轉氨酶/谷草轉氨酶底物，易溶于水。
質量指標
|
Purity
|
99.5%
|
|
Transmittance
|
85.6%
|
|
Loss on drying
|
13.5%
|
|
Heavy Metals(as Pb)
|
≤10ppm
|
|
Chloride
|
≤300ppm
|
|
Ammonium
|
≤30ppm
|
|
Sulfate
|
≤200ppm
|
|
Appearance
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White crystalline powder
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