How to use Isoleucine in Catalyst without hitting the usual pitfalls
When people talk about Catalyst, Isoleucine (CAS 73-32-5) comes up almost every time. In our sourcing and QC work the question is rarely “what's the assay” — it's “how do I actually use it in my system”. This page walks through that from a practical angle.
The role it plays in Catalyst
This is the part that's most counter-intuitive:Industrially, the value of Isoleucine (CAS 73-32-5) is rarely on the spec sheet — it is whether it stably meets your process window. In Catalyst, 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:
- L-1,2,3,4-TETRAHYDRO-QUINOLINE-2-CARBOXYLIC ACID HYDROCHLORIDE (CAS 63430-98-8)：a comparable grade often evaluated alongside。
- L-1,2,3,4-Tetrahydroisoquinoline-3-carboxylic acid (CAS 74163-81-8)：a comparable grade often evaluated alongside。
- L-1,2,3,4-TETRAHYDRONORHARMAN-3-CARBOXYLIC ACID (CAS 42438-90-4)：a comparable grade often evaluated alongside。
- L-1-Boc-Nipecotic acid (CAS 88495-54-9)：a comparable grade often evaluated alongside。
- L-1-CBZ-PIPECOLINAMIDE (CAS 61703-39-7)：a comparable grade often evaluated alongside。
Basic specifications
| Name | Isoleucine |
|---|---|
| English name | Isoleucine |
| CAS No. | 73-32-5 |
| Formula | C6H13NO2 |
| Molecular weight | 131.09 g/mol |
| Applications | Catalyst |
| 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 C6H13NO2, molecular weight 131.09 g/mol, CAS 73-32-5, melting point 285.5 °C, boiling point 168 °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.
How to get the choice right
The one I weigh most: 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.
The easiest things to miss
- 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.
Common buyer questions
In a COA for Isoleucine, 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 Isoleucine 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 Isoleucine 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 Isoleucine?
For Isoleucine, the molecular formula is C6H13NO2 and molecular weight about 131.09 g/mol (CAS 73-32-5). These are published physical properties; exact purity, specification and packaging follow the batch COA and order confirmation.
Further reading
- L-1,2,3,4-Tetrahydroisoquinoline-3-carboxylic acid (CAS 74163-81-8)
- L-1,2,3,4-TETRAHYDRONORHARMAN-3-CARBOXYLIC ACID (CAS 42438-90-4)
- L-1-Boc-Nipecotic acid (CAS 88495-54-9)
- L-1-CBZ-PIPECOLINAMIDE (CAS 61703-39-7)
See site search for Isoleucine or browse the Organic Chemicals directory.
Getting docs & a quote
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 (73-32-5) of Isoleucine 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.