A sourcing reference for L-Cysteine monohydrochloride, with a Industrial Chemicals focus

Putting L-Cysteine monohydrochloride (CAS 52-89-1) into Industrial Chemicals brings up a phrase you'll hear more than you'd expect: can this batch run on our line? To answer that honestly, you can't lean on the labelled figure alone. This page lists the checks that actually matter.

What it actually does here

Only in real use does it click; the crux is:

Industrially, the value of L-Cysteine monohydrochloride (CAS 52-89-1) is rarely on the spec sheet — it is whether it stably meets your process window. In Industrial Chemicals, its purity, impurity profile and batch consistency usually matter more than a single 'assay' number, because what really moves the finished result is often the ignored impurities and physical properties. Comparable grades:

• Magnesium Carbonate (CAS 546-93-0)：a comparable grade often evaluated alongside。
• disodium malate (CAS 676-46-0)：a comparable grade often evaluated alongside。
• Gluconic acid, sodium salt (CAS 527-07-1)：a comparable grade often evaluated alongside。
• N-gamma-ethyl-L-glutamine (CAS 3081-61-6)：a comparable grade often evaluated alongside。
• Sodium succinate (CAS 150-90-3)：a comparable grade often evaluated alongside。
• Glycine (CAS 56-40-6)：a comparable grade often evaluated alongside。
• L-Glutamic acid (CAS 56-86-0)：a comparable grade often evaluated alongside。
• Glucose oxidase (CAS 492-61-5)：a comparable grade often evaluated alongside。

Checks worth running before you order

The single most important one: Define the end use and process window first, then work back to required purity and impurity limits — not the other way around.

Check compatibility with other materials in the system; run a trial when unsure.

Match packaging and feeding method to on-site equipment so the material is usable on arrival.

Retain samples of critical lots and run third-party checks; do not rely on the supplier COA alone.

Its typical specs: name L-Cysteine monohydrochloride, CAS 52-89-1, formula C3H8ClNO2S, MW 157.00 g/mol, standard purity per batch COA, packaging confirmed per order, storage keep sealed in a cool, dry place. Final values follow the batch COA and order confirmation.

A few common pitfalls

Comparing price but not impurity profile: same assay with different impurities can yield wildly different results.

Skipping samples and scaling up: going straight to volume most often fails on compatibility.

Ignoring transport and storage: most 'arrived-dead' cases trace back to loose handling.

Q&A

When buying L-Cysteine monohydrochloride, which batch documents should I expect?

Standard flow: COA with each shipment, MSDS and TDS on request; if you have a target spec or customer acceptance criteria, list the key limits up front — the supplier will match to your grade, which beats a generic COA.

What should I compare between different batches of L-Cysteine monohydrochloride?

Beyond assay, the impurity profile and batch-to-batch consistency matter most — residual solvent, colour, heavy metals can shift significantly at the same nominal purity, and that is what moves the finished result. Hold samples of critical lots for third-party checks.

What usually goes wrong with L-Cysteine monohydrochloride in transport and storage?

Most 'arrived-dead' cases trace back to loose handling: moisture, over-temperature, or commingling. Keep sealed packaging in a cool, dry store, and verify lot numbers and arrival temperature before dosing.

What is the molecular formula and weight of L-Cysteine monohydrochloride?

For L-Cysteine monohydrochloride, the molecular formula is C3H8ClNO2S and molecular weight about 157.00 g/mol (CAS 52-89-1). These are published physical properties; exact purity, specification and packaging follow the batch COA and order confirmation.

Close cousins in the range

• disodium malate (CAS 676-46-0)
• Gluconic acid, sodium salt (CAS 527-07-1)
• N-gamma-ethyl-L-glutamine (CAS 3081-61-6)
• Sodium succinate (CAS 150-90-3)
• Glycine (CAS 56-40-6)
• L-Glutamic acid (CAS 56-86-0)

See site search for L-Cysteine monohydrochloride or browse the Organic Chemicals directory.

Supply & quality files

Jinan Shenghe Chemical Co., Ltd. supplies chemical raw materials and fine chemicals; a COA ships with every batch, with MSDS and technical data sheets available on request. In your enquiry include product name, CAS, target purity and packaging, and we will provide documents and a quote to the relevant standard.

Contact: info@chemsp.cn | +86-18553102138

Note: This page is for industrial raw-material technical discussion only. Products are supplied for industrial and research use, not for consumer or medical use. Drinking-water, food, cosmetic or pharmaceutical applications must meet applicable regulations and customer standards; specifications, compliance documents and transport requirements follow the batch COA and order confirmation.

Data source & notes

Physical data in this page (formula, molecular weight, etc.) is referenced from public chemical databases such as PubChem, ChemSpider and the CAS Registry — intrinsic published properties of the substance.The CAS number (52-89-1) of L-Cysteine monohydrochloride is the authoritative registry identifier from CAS, useful for precise cross-database verification.Purity, packaging, storage and transport follow the batch COA and order confirmation documents; application notes are general industry experience and any specific process must be validated and assessed for compliance.