188体育

   
 
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Food grade Choline chloride
Choline Bitartrate
L(+)Choline Bitartrate
D(-) Choline Bitartrate
Choline Dihydrogen Citrate (NF.XII)
98% Choline chloride crystal
50% Choline chloride powder
70% or 75% Choline chloride Auqa
50% Choline chloride powder
60% Choline chloride powder
60% Choline chloride powder
D(-)-DMAE BITARTRATE
L(+)DMAE BITARTRATE
DL-DMAE BITARTRATE
Trimethylamine hydrochloride
L-Cystine
L-Leucine
L-Tyrosine
L-Cysteine
Products
 

 
 
L-Cysteine
· CAS No.: 52-90-4
· Molecule Formula: C3H7NO2S
· Molecule Weight: 121.16
· Structure Formula:
·
· Description:white crystal or white powdery .
· Manufacture Standards:USP, AJI
· Specification:

Test items

Specification (AJI)

Specification (USP25)

188体育 Appearance

188体育 white crystal or white powdery

188体育 Identification

tested by Infrared absorption spectrometer

Specific rotation

188体育 +8.3°- +9.5°

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188体育 Solubility

188体育 ≥ 95.0%

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188体育 Chlorine content

≤ 0.04%

188体育 ---

Ammonium salt (NH4 )

188体育 ≤ 0.02%

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Sulfate radical (SO4 )

188体育 ≤ 0.030%

188体育 ---

188体育 Ferric salt (Fe)

≤ 10PPm

188体育 ---

188体育 Heavy metal (Pb)

≤ 10PPm

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Arsenic salt (As2O3)

≤ 1PPm

188体育 ---

Other amino acids

conforms

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Loss on drying

188体育 ≤ 0.5%

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Residue on Ignition (sulfated)

188体育 ≤ 0.1%

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188体育 Assay

98.0-101.0%

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pH

188体育 4.5-5.5

188体育 ---

188体育 Organic volatile matter And organic impurities

---

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· Packaging and storage: 25kg/drum, lined with double-layer film bag; Stored in a sealed container, and kept at room temperature.
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