HOME/products/Amino AcidsS-Carboxymethyl-L-cysteine

S-Carboxymethyl-L-cysteine

SKU : AMA038

Description:

Name:S-Carboxymethyl-L-cysteine

Molecular Formula:C5H9NO4S

Molecular Weight:179.19

CAS:2387-59-9

Standard: EP5

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CAS number

2387-59-9

molecular formula

C5H9NO4S

standard

AJI92

Certificate

KOSHER

Package

25kg/drum

Package

25kg/drum

Items

Specification (EP4)

Specification (AJI92)

Specification (BP98)

Description

White crystals or crystalline powder

Identification

Infrared absorption spectrum

A; B; C;

Specific rotation
[a]D20 °

-3 2 .5 ° - -35.5 °

-33.5 ° - -36.5 °

-3 2 .5 ° - 35.5

State of solution (Transmittance)

Clear and colorless

≥ 98.0%

Clear and colorless

Chloride(Cl)

≤ 0. 15

≤ 0.04%

≤ 0.15

Ammonium(NH4)

- - - -

≤ 0.02%

- - - -

Sulfate(SO4)

≤ 0. 03

≤ 0.0 2 %

≤ 0. 03

Iron(Fe)

- - - -

≤ 30PPm

- - - -

Heavy metals(Pb)

0.001%

≤ 10PPm

0.001%

Arsenic(As2O3)

- - - -

≤ 1PPm

- - - -

Other amino acids

- - - -

Conforms

- - - -

Loss on drying

≤ 0.5 %

≤ 0. 30 %

≤ 0.5 %

Residue on ignition (Sulfated)

≤ 0. 3 %

≤ 0. 1 %

≤ 0. 3 %

PH

2.0-3.0

2.0-3.5

2. 8-3.0

Assay

98. 5-10 1 .0%

98.5-101.0%

98.5-101.0%

L-cystine L-Cysteine

≤ 0.5 %
≤ 0.5 %

- - - -

Ninhydrin-positive substances: ≤ 0.5 %

White crystals or crystalline powder; slightly acid taste. Very soluble in water, practically insoluble in ethanol and in glacial acetic acid and in ether. Dissolve in dilute hydrochloric acid and in sodium hydroxide T.S,can be used in the curing of chronic tracheitis, emphysema, pulmonary.

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