Frequently Asked Questions about chemBlink

About chemBlink

(1) What is chemBlink?
chemBlink.com is an open chemical information website. Since 2005, it has provided free basic chemical information and supplier resources to the public. All submitted information to the database has been manually reviewed and updated regularly. As of winter 2022, there are about 420,000 chemicals and about 5,000 suppliers. Most of the chemicals on the chemBlink website are indexed by major search engines such as Google, and have good rankings on the search result pages, thus ensuring the continuous high traffic of the chenBlink website.

(2) What services does chemBlink provide?

Free information resource on chemical properties, including chemical names, chemical formulas, molecular structures, CAS registration numbers, basic chemical and physical properties, safety data, and supplier information.
Free online inquiry and inquiry mail forwarding service.
Free Standard Linking program for chemical products is a text-based link services. Each supplier can submit up to 50 products to create a text-based link on the chemical supplier page.
Premium Linking program. For suppliers' strong products, chemBlink provides advanced services service. This low-cost service makes strong products more likely to be favored by buyers.
Massive Linking program is a large-scale text-based link service launched by chemBlink for distributors and manufacturers. It costs less than premium links and is very suitable for suppliers who are willing to promote products in large quantities.
Banner and logo advertisements for wide range of chemical products are available.

(3) How to contact chemBlink?
chemBlink provides online support 24/7. You may reach us through the following links:
Business contact: https://www.chemblink.com/contact.htm
Product submission: https://www.chemblink.com/submit.htm
Error correction / Spam reporting: https://www.chemblink.com/spam.htm
Advertising: https://www.chemblink.com/promotion.htm

You can also reach us by e-mail: info@chemblink.com

Our mailing address is: chemBlink LLC, P.O. Box 5231, Cary, NC 27512-5231, The USA

(4) What to do if I am unable to access your web page?
chemBlink.com is hosted on cloud servers. The uptime is almost 100%. If chemBlink is undergoing routine maintenance, on rare occasions there may be a brief delay or website downtime. Please be patient while we upgrade our servers so that your product and database browsing experience can be maximized.

(5) What to do if I see unreadable text or a blank page instead of the chemBlink website?
chemBlink uses UTF-8 character set as the default format so this should not happen. Please be sure that your browser is set up to read UTF-8 which should be the default on most browsers.

Supplier Registration and Product Submission

(1) How do I register as a supplier in order to post free standard links?
Each supplier can submit up to 50 products as free standard links on the submission page. When submitting a product for the first time, you must register as a member supplier. chemBlink will show the number of free standard links that your company has already submitted on the submission confirmation page.

(2) How to update the submitted standard link products?
If you want to remove individual standard link products, you can email the the list of products to be removed to chemBlink, and the system will delete them. We suggest to delete all products and to re-submit if the list is too long. Please consult by email.

(3) How do I know which of my products are already listed on chemBlink?
Please send email to us for a detailed list of all listed products of your company.

(4) How to update my company information after registering as a free standard link product supplier?
Users should select "Updating" as "Type" in the following link and fill in new information:
https://www.chemblink.com/userRegistry.htm

(5) How to submit products for premium links or massive links?
Please use info@chemBlink.com to get in touch, sign contracts, and submit products listings for promotion.

(6) How do premium and massive suppliers update company information and change listed products?
You can log in your account to modify your company information. Please use info@chemBlink.com to submit products that need to be added or deleted, and the system will operate.

(7) How long does it take for a free standard link to appear in the lists after being submitted?
chemBlink does not guarantee a timeline for listing standard links. It can be anywhere from one day to several months.

(8) How long does it take for a premium link or a massive link to appear in the lists after being submitted?
Products submitted as premium links will appear in the list 24 hours after receipt of proof of payment. For massive links, it takes 1-3 business days.

(9) Is it normal for a submitted product to only show the name and no other information?
If the submitted product does not exist in the database, our experts will collect, review and create a data file for the product. The process will complete in 10 work days. Full information will be published online in the next update.

(10) We submitted our company information but could not find it in your database.
If you have only submitted supplier information, but have not submitted any products, your company will not appear. You must have at least one product to be listed as a supplier.

(11) We submitted a standard link, but we are not yet a supplier of this product in your database.
Submitted chemical products will not immediately get links, but will require verification. Standard links may have a delay in verification from one day to several months.

(12) Will 100% of my submitted products as standard links be successfully listed?
chemBlink will only list products that are also listed on your company website and verified by our experts. You can submit your important and trending products as premium links and chemBlink guarantees listing within 24 hours.

(13) When submitting products, a message pops up saying "Your company has already submitted 50 products", what should I do?
Currently the limit of free standard links for one company is 50. Please contact info@chemblink.com to verify submission numbers, add or remove products.

(14) When submitting products, a message pops up saying "Form could not be processed due to a temporary system error", what should I do?
Most likely a malfunction caused by submitting improper data, such as wrong format of email address, etc. Please carefully review the submitted content again before submitting.

(15) What is the difference between premium links and standard links?
Premium suppliers have their names and links displayed directly on the top left side of the product page, while standard suppliers are displayed alphabetically on the product supplier page. When buyers find the product page they need, they immediately see premium suppliers' information and inquiry links. Only when the product is not submitted by any premium suppliers, the buyer can click on the link of "Complete supplier list" to enter the supplier page to submit inquiries to the standard suppliers. If a product has been submitted as a Premium Link by certain suppliers, only those suppliers will be displayed on the product page, and the supplier page displaying a list of other standard suppliers will not be accessible. In this way, chemBlink offers manufacturers of premium products more opportunities for inquiries.

(16) What should I do after the first year of registration?
Each chemBlink member supplier can submit up to 50 products as standard links for free after registration. During the first year of membership, companies become familiar with chemBlink's services. Beginning in the second year of membership, suppliers are encouraged to choose chemBlink's premium service to promote their most competitive products and qualify to use up to 300 free standard links. Please refer to "(15) What is the difference between premium links and standard links?" and "(5) How to submit products for premium links or massive links?".

(17) As a free information website, why does chemBlink charge for it?
The main service items of chemBlink are free open resources, and the main product promotion is also free text links. chemBlink only charges a small fee from those suppliers who accept additional services to to cover maintenance costs such as servers, licenses and workforce.

(18) When I submit a product, I receive a message saying "You submitted xxxx-xx-x which is a product with a premium link.", what should I do?br> chemBlink offers customers a free advertising plan (Standard Linking) and a paid service (Premium Linking). If the products you submit are already listed as premium products (i.e. other suppliers have paid for text links of those products), those suppliers will be displayed at the top of the product page and receive inquiries directly. Your company will be listed in the standard supplier list on a separate product supplier page and will not be visible to buyers. You can ignore this message. However, you may also consider submitting the product as a premium link to appear on the product page. See "(15) What is the difference between advanced links and standard links?".

(19) What is a CAS Filter?
The CAS numbers you are trying to submit may be invalid (i.e. they do not correctly contain the number as defined by the CAS formula) or have been submitted as premium links (i.e. other vendors have paid for text links of these products). While you'll be notified when you submit, it can be annoying if you have a lot of these CAS numbers in your submission. CAS Filter enables you to find all invalid or disallowed CAS numbers with one click. A link to CAS Filter can be found on the submission page.

(20) What is a Premium supplier?
Premium suppliers refer to suppliers who participate in the premium linking plan offerred by chemBlink, and promote their strong products on the chemBlink platform. Similarly, suppliers participating in the standard linking plan are called standard suppliers, and suppliers participating in the massive linking plan are called massive suppliers. chemBlink is an online database and chemical search engine and makes no commitment to verify the qualifications of member suppliers. Suppliers are fully legally responsible for their own services and product quality. However, chemBlink requires suppliers to provide the basic information and business license of the company through service plans such as premium linking, and constrains its business behavior with recognized norms. Suppliers are obliged to fulfill the commitments agreed in the contract regarding services, product quality and resisting false advertisements, and obtain the qualification of premium link suppliers, and thus obtain the in-depth services of chemBlink. On the other hand, chemBlink protects the interests of buyers by tracking user inquiries, providing a spam reporting system, and establishing a supplier evaluation system. chemBlink does not intervene in commercial disputes between buyers and sellers, but provides a platform for communication and coordination. All suppliers with proven evidence of deceiving consumers through false or invalid advertisements shall be deleted immediately. The premium supplier program of chemBlink is beneficial to both buyers and sellers. We hope that more suppliers can obtain the qualification of premium suppliers through programs such as premium linking.

(21) What is the difference between massive links and premium links?
The same thing between the premium link and the massive link is that they are displayed on the product page, and visitors can see the links of these two types of paid suppliers and directly inquire without going to the product supplier page. Their differences are:

The premium link is always above the massive link.
The premium link can be seen when the product page is displayed, but the massive link can only be displayed in the expanded list after clicking the "More Suppliers" link.
Premium suppliers will block all free standard suppliers of this product, thereby reducing competition in inquiry, while masssive suppliers do not block other suppliers, but visitors need to turn to the product supplier page to visit other suppliers.

If a company has popular products and has many competitors, submitting these products as premium links can block all other suppliers who do not have paid services, while always being on the top of the product page, but with a higher price. Companies with a large number of products may consider using massive links, as the supplier will still appear on the product page, albeit at a lower position and requiring a click to display. Massive suppliers have a much better chance of being seen by visitors than standard suppliers that only show up on another page. The massive linking plan is popular with suppliers wishing to advertise a large volume of products due to its apparent cost-effectiveness. If your company has thousands of products ready to launch, massive linking should be the appropriate choice. If your company has dozens or hundreds of products with many competitors, we recommend considering premium links.

(22) Does chemBlink accept online payments?
Yes. You can pay your invoice online with a credit card, debit card or PayPal account. See Pay Your Invoice Online for details.

chemBlink's Information Policy

(1) How to submit inquiry to suppliers?

Select a supplier on the product page or product supplier page, click "Inquire", and buyers can directly inquire with the supplier. chemBlink instantly forwards the inquiry to the supplier.
There is a button to inquire from multiple suppliers on the product supplier page for the convenience of buyers. Select all favorite suppliers and send them inquiries with one click. But for premium products (see "(15) What is the difference between premium links and standard links?"), the bulk emailing of inquiries on product supplier pages is suppressed to ensure that only a single high-quality inquiry is forwarded to premium supplier.
If you want to contact a specific supplier or submit inquires, jump to the supplier's company page, use the form on the left or the inquiry link on the right side of products to contact the supplier.

(2) How to answer an inquiry mail?
chemBlink forwards inquiry mail immediately. There is a reply link on the forward notification. Suppliers are encouraged to reply promptly using this link, or to the return address provided by the inquiry company. Do not reply to chemBlink's notification. chemBlink is not involved in the business of any member companies and will not forward your responses to suppliers.

(3) Can I use chemBlink's pages and resources as my own?
chemBlink^® is a service mark registered in the United States and other countries. Infringement of all or part of the website is a violation of United States and international copyright laws and subject to legal action by chemBlink. chemBlink welcomes colleagues in academia and industry to use its material with permission, or to mention the following in their work:

Author: chemBlink.com
Source: https://www.chemblink.com (or specific pages)

We recommend using Harvard Citation Format for website document. For example, if you want to use Formaldehyde's web page, you can refer to chemBlink.com as follows:

chemBlink.com (2011). Formaldehyde. [Online]. March 2011. Available from: https://www.chemblink.com/products/50-00-0.htm. [Accessed: 26th March 2011]

(4) How to use the CAS number provided by chemBlink?
CAS Registry Numbers are intellectual property products of the American Chemical Society. When using the CAS registry numbers provided by chemBlink, users must follow the regulations of the American Chemical Society on the use of CAS, please refer to CAS Information Use Policy .

(5) How to use the chemical structures provided by chemBlink?
All chemical structures on chemBlink are the property of chemBlink.com and are protected under US and international copyright laws. You may use these structures on a small scale for educational or research purposes, provided you give credit or mention the author/source. To use 1,000 or more chemical structures, please contact chemBlink for a license.

(6) How to use the sample SDS provided by chemBlink?
The SDS samples collected from the Internet by chemBlink and displayed for the tutorial purpose only. chemBlink provides the information in good faith but makes no representation as to its comprehensiveness or accuracy. These documents are intended only as a guide of preparing your own information sheet to the appropriate precautionary handling of the material by a properly trained person using this product. Individuals receiving the information must exercise their independent judgment in determining its appropriateness for a particular purpose. chemBlink makes no representation or warranties, either express or implied. Accordingly, chemBlink will not be responsible for damages resulting from use or reliance upon this information. The SDS documents displayed may be protected by copyright laws. Individuals intending to use the content of samples must contact the information source to obtain proper permission.