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L-Cysteine Base

Cas No.: 52-90-4 HS Code.: 293090 E No.: E920 Product Alias: L-Cysteine

Categories: Nutrition Enhancers

L-Cysteine Base is a white crystalline, tasteless powder that is easily soluble in water but insoluble in alcohol and ether. It is commonly used for bread fermentation as it promotes the form of glutelin and prevents from getting old. It helps the promotion of the stomach lining and is classified as a protein amino acid. It is used in a number of foods ranging from meats to dairy and vegetable sources. You can find premium suppliers that supply L-Cysteine Base on OKFoodAdd, the biggest online marketplace for food additive industry. The listed suppliers and prices are validated by native professional sourcing team members from China. You can send inquiries with confidence and get prompt responses.

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L-Cysteine Base

Suppliers of L-Cysteine Base

I want to supply3 Quotes in total


Standard:USP28/EP5/AJI92, FCCIV, Package: -- , Appearance: White crystalline powder,tasteless,easily soluble ...





Standard:FCC/USP/Food Grade, Package: -- , Appearance: White crystalline powder





Standard:FCC/BP/USP/EP/Food Grade/Other, Package: -- , Appearance: A white crystalline powder





Specific optical rotation[a]D20°

+ 8.3o~ +9.5 o

State of solution (Transmittance)




Heavy metals(Pb)


Chloride (Cl)


Arsenic (As2O3)


Loss on drying


Residue on ignition


pH value

4.5 5.5

Iron (Fe)


Ammonium (NH4)


Sulfate (SO4)


Other amino acids



Applications & Uses

L-Cysteine Base is commonly used for bread fermentation as it promotes the form of glutelin and prevents from getting old. It helps the promotion of the stomach lining and is classified as a protein amino acid.

Beverage Additives, Dietary Supplement Additives


Storage & Handling Precautions


L-Cysteine Base should be kept at room temperature in dry, cool, and shaded place with original packaging. Moisture should be avoided.

Handling Precaution:

Handling of L-Cysteine Base should only be performed by those who are well trained and familiar with chemicals. Avoid skin and eye contact and breathing in dust. Avoid handling which leads to dust formation.


Quality Control

At OKFoodAdd, we value the opportunity to provide the real suppliers and valid prices of food additives for global consumers. We base our decisions not only on food chemistry, but also ideology, philosophy, and a careful evaluation of the promise we’ve made to our consumers. The food additives listed on OKFoodAdd are strictly reviewed and conform to certain quality standards.


QAre you manufacturer of L-Cysteine Base?

No, OKFoodAdd does not manufacture L-Cysteine Base. We have firm relationships with manufacturers and suppliers of L-Cysteine Base in China and our QC team will be glad to help you audit or inspect the manufacturers.

QDo you have L-Cysteine Base in stock?

After we receive your inquiry, your personal purchase agent will contact the manufacturers soon and make sure L-Cysteine Base is available to ship.

QWhat is the lead time for L-Cysteine Base?

If your required quantity is within the inventory limit, your order will be able to be shipped in one week; if the quantity is large, your purchase agent will negotiate prices and estimated delivery time with the manufacturer on your behalf.

QWhat is the MOQ of L-Cysteine Base?

According to different food ingredients and different manufacturers, the MOQ varies. Please consult online customer service or your personal purchase agent for more details.

QWhat is the price of L-Cysteine Base?

The prices you see in the product detail page are valid prices. Since the price of L-Cysteine Base fluctuates often, we recommend you confirm the prices with your personal purchase agent before placing orders.

QDo you provide free samples of L-Cysteine Base?

Yes, we provide free samples of L-Cysteine Base. Please send inquiry to us or consult your personal purchase agent for more details.

QWhat kind of payment methods do you accept?

We accept payment methods including T/T, O/A, D/P, D/A, Credit, etc. Please consult your personal purchase agent for more details.

QHow long do you need to reply to my inquiry on L-Cysteine Base?

Normally, it takes 24 hours at most (except holidays).

QHow do I contact my personal purchase agent?

You can find the contact information in dashboard of your account center.

QIs the information of suppliers listed on OKFoodAdd reliable?

Yes, we guarantee the information is real and valid. We can also provide factory audit service for all suppliers listed on OKFooddAdd.

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