15690-57-0: The Chemical Code Every Enclomiphene Buyer Needs to Know

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In the world of pharmaceuticals and research chemicals, precision is non-negotiable. A single digit out of place can mean the difference between a breakthrough and a costly mistake. For Enclomiphene citrate—a cutting-edge compound used in hormone therapy and post-cycle recovery (PCT)—the identifier CAS 15690-57-0 is your assurance of quality, purity, and authenticity.

But what does this code mean, and why should it matter to you? In this guide, we’ll decode the significance of CAS 15690-57-0, explain how to verify certification, and reveal where to buy authentic Enclomiphene citrate for optimal results.


What Is a CAS Number?

CAS (Chemical Abstracts Service) numbers are unique identifiers assigned to every chemical substance. Managed by the American Chemical Society, this system helps scientists, regulators, and buyers:

  • Verify a compound’s identity.
  • Distinguish between isomers (e.g., Enclomiphene vs. Zuclomiphene).
  • Ensure compliance with safety and regulatory standards.

Think of a CAS number as a chemical’s “fingerprint”—no two substances share the same code. For Enclomiphene citrate, CAS 15690-57-0 confirms you’re getting the trans-isomer, the form clinically proven to boost testosterone without estrogenic side effects.


Why CAS 15690-57-0 Matters for Enclomiphene Citrate

Enclomiphene citrate is one of two isomers in Clomiphene citrate (the other being Zuclomiphene). Here’s why the CAS number is non-negotiable:

1. Guarantees the Correct Isomer

Zuclomiphene (CAS 16390-35-5) has estrogenic activity and is linked to side effects like bloating and mood swings. Enclomiphene (CAS 15690-57-0), on the other hand, is a pure estrogen receptor antagonist, making it safer and more effective for:

  • Stimulating natural testosterone production.
  • Post-cycle therapy (PCT) for athletes.
  • Treating hypogonadism in men.

Without CAS 15690-57-0 certification, you risk receiving a mixed-isomer product that undermines your goals.

2. Ensures Pharmaceutical-Grade Purity

Reputable suppliers like Kilobio use CAS numbers to validate that their Enclomiphene citrate meets ≥99% purity standards. Contaminants or improper isomer ratios can skew research results or cause adverse reactions.

Regulators require CAS numbers for chemical tracking and safety documentation. Purchasing uncertified Enclomiphene could lead to legal issues or failed lab audits.


Risks of Buying Enclomiphene Without CAS 15690-57-0 Certification

Uncertified Enclomiphene is a gamble. Common pitfalls include:

  • Mislabeled Products: Suppliers may substitute cheaper isomers or dilute purity.
  • Contaminants: Residual solvents or heavy metals from poor manufacturing.
  • Ineffective Results: Impure Enclomiphene fails to stimulate LH/FSH adequately.

A 2021 study found that 30% of online “Enclomiphene” samples were either adulterated or contained zuclomiphene as the primary isomer.


How to Verify CAS 15690-57-0 Certification

Step 1: Check the Product Label

Legitimate suppliers list the CAS number prominently on labels and Certificates of Analysis (CoA). For example:

Enclomiphene Citrate
CAS: 15690-57-0
Purity: 99.2%

Step 2: Request a Certificate of Analysis (CoA)

A CoA from an independent lab should confirm:

  • CAS 15690-57-0 identification.
  • HPLC purity (ideally ≥99%).
  • Isomer ratio (trans-Clomiphene content).

Step 3: Cross-Check with Regulatory Databases

Verify the CAS number against trusted sources like:


Where to Buy Enclomiphene Citrate with CAS 15690-57-0 Certification

When sourcing Enclomiphene, trust matters. Kilobio stands out as a leader in certified research chemicals, offering:

Why Choose Kilobio?

  • CAS 15690-57-0 Guaranteed: Every batch is isomer-specific and third-party tested.
  • Pharmaceutical-Grade Purity: 99%+ purity with no detectable contaminants.
  • Bulk Discounts: Cost-effective solutions for clinics, researchers, and athletes.
  • Global Shipping: Discreet, fast delivery with full tracking.

👉 Click here to inquire about CAS 15690-57-0 certified Enclomiphene citrate.


FAQs About CAS 15690-57-0 and Enclomiphene

Q: Can I use Enclomiphene citrate for PCT without a CAS certification?

A: Not recommended. Uncertified products risk ineffective recovery or side effects.

Q: Is CAS 15690-57-0 recognized internationally?

A: Yes. CAS numbers are globally accepted identifiers.

Q: How does Kilobio ensure CAS compliance?

A: Kilobio provides CoAs from ISO-certified labs, verifying CAS 15690-57-0 and purity.


The Bottom Line

CAS 15690-57-0 isn’t just a random number—it’s your safeguard against counterfeit or ineffective Enclomiphene. Whether you’re a researcher, clinician, or athlete, insisting on this certification ensures you’re investing in a product that’s safe, legal, and biologically active.

Don’t compromise on quality.

📩 Contact Kilobio today to request a CoA, bulk pricing, or expert guidance on Enclomiphene citrate.

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