Matching filed formulation · ba7a5f2a9024
3 labels with a matching filed formulation
3 labels from 3 brands file an identical excipient list and serving structure in NIH DSLD snapshot 2026-08-10, with elemental mg per unit rounded to the nearest 5 mg; matched 2026-09-13.
A matching filed formulation indicates similarity between records. It does not prove a common manufacturer. The fingerprint compares the excipient list, shell classification, serving-unit count and rounded elemental amount; it does not compare the active salt identity or ingredient quantities.
Shared fields and reproducible fingerprint
4 filed other-ingredient entries, 1 units per serving and 500 mg elemental magnesium per unit after rounding define this group, calculated 2026-09-13 from the 2026-08-10 records.
| Sorted lowercase other ingredients | |
|---|---|
| Shell classification from ingredient text | vegetarian |
| Discrete units per serving | 1 |
| Elemental mg per unit, rounded to 5 mg | 500 mg |
| SHA-1 fingerprint | ba7a5f2a90241b501c52a17f62d57c1a5f6b9b6e |
The hash input is the JSON array [sorted lowercase ingredient list, shell classification or null, units per serving, rounded mg per unit]. Leading and trailing spaces are removed and repeated spaces collapse to one. Ingredient synonyms remain distinct here. Rounding uses 5 × round(elemental mg per serving ÷ units per serving ÷ 5), with halfway values rounded upward.
At least 4 distinct substance entries and at least 2 distinct brand identifiers are required, calculated 2026-09-13. Labels with missing discrete-unit counts, ranged serving-unit counts or unresolved elemental amounts are excluded from fingerprinting. A shared null shell field means shared missing information; it does not establish identical physical shells.
Brand-name variants are consolidated for the 2-brand threshold: Bronson Laboratories with Bronson, Chapter One by Zahler with Chapter One, and vitafusion GOODNESS with vitafusion. Original filed brand names remain visible in the label table.
Price spread within each salt
0 published price observations with a resolved salt are available for this cluster as of 2026-09-13; 0 salt groups have at least 2 observations for a price-spread calculation.
EC100 = item price ÷ (elemental mg per serving × servings per container ÷ 100). The ratio is maximum EC100 ÷ minimum EC100 within the same salt. Different salts retain separate rows, even when their excipient fingerprints match. Observation dates and provisional match status remain visible in the label table below.
0 labels have a resolved single salt for a within-salt price spread as of 2026-09-13.
Labels sharing these filed fields
3 labels from 3 brands share this fingerprint as of 2026-09-13; the table retains each original ingredient list, serving statement and dated retail observation in brand order.
| Brand / label | Salt / physical state | Filed serving | Observed item price / EC100 | Filed other ingredients |
|---|---|---|---|---|
| Nature's Craft MagnesiumNIH DSLD 296679 · label 2023-08-23 | Single salt unresolved as of 2026-09-13Capsule | 1 Vegetable Capsule(s)500 mg elemental magnesium per serving | No published price matched to NIH DSLD 296679; barcode not filed as of 2026-09-13. | Hydroxypropyl Methylcellulose; Microcrystalline Cellulose; Magnesium Stearate; Silicon Dioxide |
| PureMax Labs YummyVite Magnesium ComplexNIH DSLD 318898 · label 2024-09-25 | Single salt unresolved as of 2026-09-13Capsule | 1 Vegetable Capsule(s)500 mg elemental magnesium per serving | No published price matched to barcode 7 62535 25694 8 as of 2026-09-13. | Hydroxypropyl Methylcellulose; Microcrystalline Cellulose; Magnesium Stearate; Silicon Dioxide |
| Sunergetic Magnesium Complex 500 mgNIH DSLD 276822 · label 2022-11-22 | Single salt unresolved as of 2026-09-13Capsule | 1 Capsule(s)500 mg elemental magnesium per serving | No published price matched to barcode X0019GZUWN as of 2026-09-13. | Hydroxypropyl Methylcellulose; Microcrystalline Cellulose; Magnesium Stearate; Silicon Dioxide |