A Certificate of Analysis (COA) is a document from a chemical manufacturer or distributor that lists the measured test results for a specific batch of product against its published specification. It confirms identity, purity, and key properties — lot number, assay, appearance, water content, and residue — so a buyer can verify a shipment meets its grade before the material is used or released.

What is a Certificate of Analysis (COA)?

A Certificate of Analysis is a batch-specific quality record. Unlike a general spec sheet, which states the target ranges a product should meet, a COA reports the actual analytical results for one production lot and states whether each result passes or fails the specification. It ties results to a lot or batch number so the paperwork can be traced back to the exact drum, tote, or tanker you received. In regulated industries, the COA is the document buyers rely on to accept a shipment and to document that accepted material met its grade.

What information is on a chemical COA?

COAs vary by product and grade, but a complete chemical COA includes the fields below. If any of these are missing, ask the supplier before accepting the lot.

How do you read a Certificate of Analysis?

Read a COA in four steps:

1. Match the identity. Confirm the product name, grade, and CAS number match what you ordered, and that the lot number matches the drum or tote label in front of you.
2. Check the assay. Compare the measured purity against the required specification for your grade. A 99.9% ACS result is not interchangeable with a 99.85% technical result if your process needs ACS.
3. Scan the critical limits. For your application, the make-or-break line item might be water content, trace metals, or UV absorbance, not overall assay. Confirm the results that matter for your use pass.
4. Verify the release. Check the test date and authorized signature. A COA without a date, lot number, or signature is incomplete and should not be used to accept material.

COA vs SDS vs spec sheet: what’s the difference?

Buyers often confuse these three documents. They serve different purposes and are not interchangeable.

Why do COAs matter for regulated industries?

In pharmaceutical, food, cosmetic, and analytical work, the COA is a compliance record, not a courtesy. FDA current Good Manufacturing Practice requires that each lot of an incoming component be tested or verified against a certificate of analysis before use (21 CFR 211.84 and 211.194). Laboratories that generate the underlying data are commonly accredited to ISO/IEC 17025, the international standard for testing and calibration competence, and results may be traced to reference standards such as USP or NIST. Keeping COAs on file lets you demonstrate, during an audit, that every batch you used met its specification.

Does RightPath provide a COA with every order?

Yes. RightPath Industries includes a batch Certificate of Analysis and grade-specific spec sheet with every shipment, across drums, totes, and bulk. We stock ACS Reagent, HPLC, USP/NF, and technical grades of solvents such as methanol and the broader high-purity analytical solvents line, each with documentation matched to the grade you order. If your quality system requires specific test line items on the COA, tell us up front and we will confirm availability before shipping.

How do you order from RightPath?

Send us the product, grade, and quantity, and note any COA requirements your process or auditor needs. Request bulk pricing and a RightPath specialist will confirm grade, documentation, and lead time before you commit.

Frequently asked questions about Certificates of Analysis

What does COA stand for in chemicals?

COA stands for Certificate of Analysis — a batch-specific document reporting a chemical lot’s measured test results against its specification.

Is a COA the same as a spec sheet?

No. A spec sheet lists the target ranges a product must meet; a COA reports the actual measured results for one specific batch and states whether each passes those targets.

How do I get a Certificate of Analysis for a chemical?

Request the COA from your supplier by lot number. Reputable distributors provide the COA with the shipment or on request; RightPath includes one with every order.

How long should I keep chemical COAs?

Retention depends on your industry and quality system, but regulated manufacturers commonly keep COAs for the product’s shelf life plus a defined period (often several years) to support audits and traceability. Follow your own SOPs and applicable regulations.

Is a COA required by the FDA?

Under FDA cGMP, each incoming lot of a component must be tested or verified against a certificate of analysis before use (21 CFR 211.84). The COA is a core part of that verification record.

RightPath Industries supplies documented, COA-backed solvents, glycols, acids, and specialty chemicals in drums, totes, and bulk. Regulatory references above point to FDA 21 CFR Part 211 and ISO/IEC 17025.

It is perhaps one of the most common solvents used in the laboratory today, HPLC Grade Acetonitrile.  The term HPLC stands for high performance liquid chromatography.  HPLC is an analytical chemistry technique that forces a sample with pressure and pumps through a column filled with absorbent material. As the material passes through the common different flow rates occur when different materials are absorbed into the column at different rates leading to separation.  This separation is then measured and compared with known results to identify your sample.

Now that we know what HPLC stands for why do we use HPLC grade?  The term grade stands for the purity and cleanliness of a solvent.  When performing HPLC testing you want to know exactly what’s in the solvent to avoid contamination and incorrect identification of samples.  This is why only high purity HPLC grade acetonitrile can be used.  If another grade such as ACS grade acetonitrile was used your sample would contaminants and peaks and valleys all over the place giving you a false identification.  It is imperative that your solvents are not only clean but also reliable.  That is why RightPath Industries created highpuritysolvents.com, an online web store allowing you to purchase HPLC grade acetonitrile at a fair price quickly and easily.

This is why we offer HPLC grade acetonitrile to our analytical and laboratory customers to ensure that each and every time you get consistent and reliable results.  Not to mention our acetonitrile is priced significantly less than our competitors.  If you have any questions or would like to place an order for Acetonitrile or any high purity solvents simply visit our online store

Are you tired of overpaying for solvents for use in your laboratory?  Are you worried that because a solvent doesnt have a brand name or is less expensive it isnt of the same or higher quality?

As many of you may know RightPath Industries not only distributes bulk chemicals but we also distribute a significant amount high purity solvents used in the laboratory for everything from regular bench top work all the way to pesticide residue analysis.  All of the solvents we carry and distribute are lot tested and include COA’s to ensure the utmost quality for your analytical needs.  We have built a vast network of direct manufacturing relationships with some of the premier chemical manufacturing companies in the Country.  This is how and why we are able to offer you not only the same exact high purity solvents you are using now, but also those same solvents at a significantly reduced price.  We pass along our savings to you, the customer!  We will never charge you some outlandish shipping fee, nor will we increase the prices significantly throughout the year.  We believe that by working together in a transparent environment and truly knowing your needs and wants we can not only help your lab run more efficient but also save you money in the long run.

So feel free to reach out look at some of our products, order online or request a quote to your liking.  We are willing to do what it takes to make you a repeat customer for years to come

RightPath Industries offers the best pricing on high purity solvents and we are going to do our best to prove it.  For the rest of 2017 we have high purity  Dichloromethane Distilled in Glass Grade, Methanol HPLC Grade, Acetone HPLC Grade, and ACS Grade Nitric Acid all at significantly reduced pricing.  If you are looking to save your analytical lab money feel free to purchase online or contact us today to see how you can save by working with RightPath Industries.  We currently carry over 500 different chemicals in our online store feel free to visit, order or even get a quote and see the difference.

Visit highpuritysolvent.com today!

We here at RightPath Industries would like to think of us as synonymous with high purity solvents. We have recently updated our website and even created a separate secure online store for ordering all of your high purity solvents.  You can now order all of your high purity solvents through highpuritysolvent.com which is part of RightPath Industries.  You can also request custom pricing by simply contacting us.  We often have sales on our website so it is advisable to check often or contact us if we do not offer something that you might be looking for.  All of our chemicals can be drop ins and direct replacements for other brand name products that you are simply paying too much money for.  We believe in building long standing business relationships with our customers and pricing products too high is not one of our goals however saving you time and money is.  By working with RightPath industries for you high purity solvent needs you can not only save just time by ordering many of your items in one place with RightPath Analytical and our high purity solvents but you can also save money.  Our pricing is far below in the industry averages and we specifically cater to smaller to medium size laboratories.  Please feel free to give us a call and see how we can save you money not only today but far into the future as well.

Order Online

For the entire rest of 2017 we will be selling Tetrahydrofuran (THF) drums from $1.90/lb DLVD. Your pricing may vary slightly due to freight rates so please feel free to contact us today or simply order online.

Tetrahydrofuran is a commonly used solvent not only in the lab but also in production. The principal end uses of THF include PTMEG, pharmaceutical solvent, adhesives, PVC cement and magnetic tape.  Due to its’ tendency to form peroxides during storage, all of our THF is inhibited with BHT.

When working in any industry where a serious accident could occur on the job, safety is absolutely paramount. This is especially true if your line of work finds you in a laboratory working with dangerous and/or sensitive materials such as chemicals. However, not all laboratories or lab managers are as thorough with safety training as is needed, and some researchers may not be as attentive as they should be during training. Nevertheless, safety remains a top concern for those working in these particular fields, so we’ve gathered some data on the industries that see the most injuries and have put together some tips to always keep in mind when working with hazardous chemicals in the workplace.

Is the comeback of coal on the horizon.  As many of you have seen President Trump is working on repealing some of the clean air act  laws that lowered the emission rates of CO2 which mainly effected coal fired power plants.  As many of you may also know the large coal and energy companies in the United States do not have the capabilities to test many of their coals in house. This is where specialty laboratories perform in house testing of coal samples and provide those analysis back to the companies requesting testing.  Some of these tests such as the sink and float analysis are tried and true methods that have been used for the past 50 years to analyze coals.  Two of the main materials used in sink and float analsysis are dibromomethane and perchlorethylene.  These are both what are termed as halogenated solvents and are both very dangerous to work with and have been known to cause cancer. This is one reason why RightPath Industries makes all of our customers using halogenated solvents require the filling out of a user agreement form to ensure that staff is properly trained in how to handle the materials.

The main reason for the slow demise of coal over the past few years can be viewed as two fold.  One being the clean air act which caused a significant disruption with competitive energy companies in having to provide new scrubbers to be below the new EPA limits.  The second and perhaps the main reason is rise of fractal drilling and the marcellus shale gas reserve. Coal testing laboratories are also feeling the burden of lowered coal usages. There has been a reduction at coal testing labs by over 70% in the past 3 years. Many coal testing labs have since gone out of business due to the low sample request by energy companies.

As you can see in the above figure in 2012 Natural gas in 2012 became the predominant source of energy for the United States surpassing coal.  This is mainly due to the large natural reserves and lower costs associated with extraction of coal from the earth utilizing techniques such as fractal drilling which drive the cost down considerably when in comparison with coal.

We believe that while the clean air act redaction might help in the short term for some coal fired power plants overall due to the large and cheap supply of natural gas moving forward coal production and with it ancillary markets and employment in the coal sector will continue to suffer.

As many of our customers in coal country there are still opportunities utilizing current infrastructure in many of the laboratories across the country.  Many coal labs already contain the required staffing as well as testing equipment needed to begin operations in environmental as well as analytical testing services.   If you are looking to make the switch please feel free to contact RightPath Industries and see how our team of experts my be able to help you.

A RightPath Brands Company

We have taken a look at other chemical and laboratory supply companies and decided that not every page needed to have 300 links and steer your all over the place.  What we wanted was something complete, concise and to the point when looking for  a product you may need.  All that is needed to find a product on our website is to simple go to the search box at the top or lower right hand side of the page and type in the chemical name of the product you are looking for or the CAS number.  You can also click on products and scroll through our offerings as well. We have done our very best at RightPath Industries to get you to the chemical you may need as quickly as possible.  Please feel free to contact us today to lower your cost of goods for high purity solvents, acids and general chemicals all across the United States