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CARBOCISTEIN

Product Details:

Purity	99.9%
CAS No.	2387-59-9
Color	White powder
Place of Origin	Sichuan, China (Mainland)
Brand Name	Brightol
Model Number	USP

Payment & Shipping Terms:

Minimum Order Quantity:	1 Kilogram As per customers' requirements.
Packaging Details:	25Kg/Drum
Delivery Time:	Prompt
Payment Terms:	L/C,T/T,Western Union,Paypal
Supply Ability:	10 Ton per Month As per customers' requirements.

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Detailed Product Description

Product :CARBOCISTEIN
(S-Carboxymethyl-L-Cysteine)

Chemical Name: S-Carboxymethyl-L-Cysteine, Carbocistein
Structure Formula:

Molecular Formula: C₅H₉NO₄S
Molecular Weight: 179.1904
Cas No: [2387-59-9]
Characteristics: White crystals or crystalline powder . Slighytly acid tast. Very slightly soluble in water, practically insoluble in ethanol and in gracial acetic acid and in ether. Dissolves in dilute hydrochloric acid and in sodium hydroxide T.S.
Quality Standards: EP4, AJI92, BP98

Items	Specification (EP4)	Specification (AJI92)	Specification (BP98)
Description	White crystals or crystalline powder
Identification	Infrared absorption spectrum		A; B; C;
Specific rotation [a]_D^{20 °}	-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 %

Packaging and Storage: In 25kgs f iber drum double polyethylene bags inside; Preserve in well-closed containers, at controlled room temperature.
Recommended limit: 2 year.

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