L-Cystine is a chemical product listing on XCHEMI (https://www.xchemi.com), offered by Shandong Lanyuguang Chemical Co., Ltd for international B2B procurement. The CAS Registry Number shown on this listing is 56-89-3. Specifications on this page are provided by the supplier; confirm critical attributes before purchase.

What is the CAS number for this listing?

This XCHEMI product page lists CAS 56-89-3 for L-Cystine. CAS numbers help align chemical identity across suppliers and regions. Always verify identity, grade, and impurity profile with supplier documentation (e.g., COA) before use in regulated processes.

How can I request a quotation or buy L-Cystine?

Use the XCHEMI marketplace actions on this listing (https://www.xchemi.com/product/408739737120323645.html) to contact Shandong Lanyuguang Chemical Co., Ltd and request a quotation (RFQ). Offer price and currency—when shown—come from the supplier listing and may vary by quantity and shipping terms.

What purity, grade, and packaging are listed?

Purity: 99%. Appearance: White L-CYSTINE.

How should chemicals be stored and handled?

Follow supplier SDS / label instructions, local regulations, and your site safety program. XCHEMI is a B2B marketplace; obtain current SDS and handling guidance from Shandong Lanyuguang Chemical Co., Ltd before receipt, storage, or use.

What are typical applications for L-Cystine?

Applications depend on industry segment and process requirements. Use this listing as a sourcing lead and validate fitness-for-purpose with Shandong Lanyuguang Chemical Co., Ltd for your intended use (e.g., synthesis, formulation, manufacturing).

Is a safety data sheet (SDS / MSDS) available?

Request SDS/MSDS and regulatory documents from Shandong Lanyuguang Chemical Co., Ltd through XCHEMI quotation or supplier contact. Marketplace summaries do not replace official safety documentation.

Who is the seller for this product on XCHEMI?

Shandong Lanyuguang Chemical Co., Ltd is identified as the seller on this listing. You can open the supplier storefront from this page when available to review company profile and other listed chemicals.