YISHENG MAOLIAN — SOURCING BRIEF
Vitamin K2 MK-7

SOURCE-LISTING SUMMARY, NOT A COA, TDS, APPROVAL OR BINDING QUOTATION.
Review status: technical and business confirmation pending.
Website: https://ymingredients.com/products/vitamin-k2-mk-7/
Source checked: 2026-10-24

MATERIAL-REVIEW REFERENCES
Specification wording: Identity confirmation required
Source CAS wording: Unconfirmed identity reference — source lists 2124-57-4; Unconfirmed identity reference — source lists 27670-94-6
CAS entries need their relationship to the complete offered material confirmed; they do not establish the identity of an extract or carrier system.
Source form wording: Powder
Source method label: HPLC; request the actual procedure, reporting basis and lot relationship.

LISTED TECHNICAL FIELDS
Source labels are retained for review. An ingredient label is not an approved analyte definition; a method label is not a complete analytical protocol.
Type: Vitamins
Dosage Form: Powder
Shelf-Life: 24months
Place of Origin: Shaanxi, China
Other name: K2MK7
Appearance: Light yellow powder
CAS No.: Unconfirmed identity reference — source lists 2124-57-4
Specification: 1%
Test method: HPLC
Sample: 10-20g — source listing only; availability, quantity, cost and delivery require confirmation.
Shelf life: 2 Years

SUPPLIER DETAIL TABLE — CHECKED 2026-10-25; NOT A LOT RESULT
CAS No.: Unconfirmed identity reference — source lists 27670-94-6
Appearance: Light yellow powder
Specification: 1%

OPEN QUESTIONS
Identity reference across source sections: The main attributes and freshly retrieved supplier-detail table give different CAS references. Resolve the exact material identity before quotation or sampling. Values: 2124-57-4 / 27670-94-6 (detail table checked 2026-10-25)

MATERIAL-SPECIFIC BUYER REVIEW
Purchasing questions and source interpretation; not additional approved specifications.
Which CAS reference applies to this material?
The source sections give 2124-57-4 and 27670-94-6. This page does not choose one as the confirmed identity. Request a corrected specification linking the named material, identity reference and relevant analytical records before quotation or sampling.
Can the 1% listing statement resolve that identity question?
No. An assay statement and an identity reference answer different questions. Confirm the material identity, composition and meaning of the 1% statement in the same written grade specification.

DOCUMENT REQUEST (AVAILABILITY NOT ASSUMED)
Current specification and complete composition
Representative COA and analytical methods, with lot relationship
Relevant safety and application records for the intended use

SOURCE-LISTING COMMERCIAL REFERENCES
These listing references are not an approved current offer. Confirm the actual quantity, unit, packaging and delivery terms in writing.
Source-listed MOQ: 1 kilograms
Delivery schedule: request confirmation for the selected grade, quantity, documents and destination.

YOUR COMMERCIAL BRIEF
Target grade / method: __________________
Intended application / destination: __________________
Sample or purchase quantity and unit: __________________
Packaging / delivery deadline: __________________

SOURCE LISTINGS
https://www.alibaba.com/product-detail/Health-Care-Supplement-Vitamins-Raw-Material_1600371987068.html

CONTACT
Xi'an Yisheng Maolian E-Commerce Co.,Ltd
西安翊昇贸联电商有限公司
Room 1403, T162, Tower A, Huixin Center, No. 1 Zhangba 1st Road, High-tech Zone, Xi'an, Shaanxi, China
陕西省西安市高新区丈八一路1号汇鑫中心-A座1403室T162
sales@ymingredients.com
+86 18135720426

Representative images do not establish identity, composition, purity or actual batch appearance.