THREONINE (CAS 72-19-5): Sourcing & QC Notes

Q: What is the molecular formula and weight of THREONINE?

For THREONINE, the molecular formula is C4H9NO3 and molecular weight about 119.06 g/mol (CAS 72-19-5). These are published physical properties; exact purity, specification and packaging follow the batch COA and order confirmation.

2026-11-01 · Keyword：THREONINE · CAS 72-19-5 · Jinan Shenghe Chemical Co., Ltd. · 中文

Putting THREONINE (CAS 72-19-5) 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.

Basic specifications

Name	THREONINE
English name	THREONINE
CAS No.	72-19-5
Formula	C4H9NO3
Molecular weight	119.06 g/mol
Applications	Industrial Chemicals
Standard purity	per batch COA
Packaging	confirmed per order
Storage	keep sealed in a cool, dry place

Figures above are published / typical information; final values follow the batch COA and order confirmation.

Key physical data: molecular formula C4H9NO3, molecular weight 119.06 g/mol, CAS 72-19-5, melting point 256 °C. Sourced from public chemical databases such as PubChem, ChemSpider and the CAS Registry; the CAS number is the authoritative registry identifier. Purity and packaging follow the batch COA and order confirmation.

Starting with the mechanism

It's simpler than it looks:

Industrially, the value of THREONINE (CAS 72-19-5) 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 Chloride (CAS 7786-30-3)：a comparable grade often evaluated alongside。
Zinc Citrate (CAS 546-46-3)：a comparable grade often evaluated alongside。
L-Threonic Acid Calcium (CAS 70753-61-6)：a comparable grade often evaluated alongside。
Calcium Citrate Malate (CAS 159771-97-8)：a comparable grade often evaluated alongside。
Calcium Citrate (CAS 813-94-5)：a comparable grade often evaluated alongside。
Calcium acetate (CAS 62-54-4)：a comparable grade often evaluated alongside。
edta iron(iii) sodium salt (CAS 15708-41-5)：a comparable grade often evaluated alongside。
ferric citrate (CAS 3522-50-7)：a comparable grade often evaluated alongside。

Checks worth running before you order

If I had to pick one, it'd be: 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.

Mistakes people make

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.

A few things people ask

In a COA for THREONINE, which values best reveal batch stability?

Residual solvent, colour, moisture and heavy metals carry more signal than the assay line; different suppliers use different COA templates, so pick the 2-3 limits that matter for your use and compare those across vendors.

Between bench and scale-up, where does THREONINE most often fail?

The dosing point and contact time — at scale, heat/mass transfer degrade, and compatibility issues that didn't show at the bench surface here; run 2-3 graded trials before going to full volume.

How do I match THREONINE packaging to my site?

Work backward from dosing frequency and metering precision: continuous dosing suits bags/drums, intermittent suits smaller packs; and the pack material (PE/PP/glass) must be compatible with the material to avoid uptake or migration.

What is the molecular formula and weight of THREONINE?

For THREONINE, the molecular formula is C4H9NO3 and molecular weight about 119.06 g/mol (CAS 72-19-5). These are published physical properties; exact purity, specification and packaging follow the batch COA and order confirmation.

Worth comparing alongside

See site search for THREONINE 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 (72-19-5) of THREONINE 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.