Description
STANDARDISED ACTIVE
3,3′-Diindolylmethane — 99.0%
Diindolylmethane (DIM) is listed as a defined synthetic compound at 99.0% by HPLC, rather than as a cruciferous plant extract. Compare chemical identity, assay method and related-substance limits on the current batch specification before substituting another indole ingredient.
COA-Backed Specification
| Identity | 3,3′-Diindolylmethane (DIM) |
|---|---|
| Plant part | Synthetic, derived from indole-3-carbinol |
| Form and colour | Off-white to pale cream crystalline powder |
| Assay | 99.0% |
| Method | HPLC |
| Related substances | Indole-3-carbinol and dimeric by-products reported per batch |
| Particle size | 98% through 80 mesh |
| Loss on drying | Within the limits of the approved specification |
| Ash | Within the limits of the approved specification |
| Heavy metals | Within the limits of the approved specification |
| Microbiological limits | Within the limits of the approved specification |
| Shelf life | Two years when stored properly |
Limits shown are the agreed specification. Result values are issued on the batch-specific certificate of analysis.
Buyer Decision Guide
Buyers comparing DIM offers usually find the difference in what the percentage refers to. Three points separate a true 99% grade from a relabelled extract.
- Assay: 99.0% by HPLC, on the isolated compound.
- Related substances: indole-3-carbinol and dimeric by-products reported individually.
- Identity confirmed against a DIM reference standard, not by appearance alone.
- Solvent residues reported per batch, since the synthesis route uses organic solvents.
- Particle size and bulk density agreed for capsule-filling lines.
- COA, specification sheet and safety data sheet accompany each shipment.
How This Grade Differs
Indole-3-carbinol (I3C) 99% is listed as a separate compound. DIM and I3C have different chemical identities and batch specifications; review the intended ingredient and related-substance results before changing a formulation.
Related product: indole-3-carbinol (I3C) 99%. Confirm the current batch specification before substitution.
Quality and Documentation
Each batch is assayed by HPLC with related substances integrated individually, then checked for residual solvents, loss on drying, heavy metals and microbiology. Reference standard traceability is recorded in the batch file.
Frequently Asked Questions
What specification defines Diindolylmethane (DIM) Powder 99%?
99.0%, tested by HPLC.
How is this grade positioned against the other forms offered?
Indole-3-carbinol (I3C) 99% is listed as a separate compound. DIM and I3C have different chemical identities and batch specifications; review the intended ingredient and related-substance results before changing a formulation.
What must the certificate of analysis report for this product?
Assay: 99.0% by HPLC, on the isolated compound. Related substances: indole-3-carbinol and dimeric by-products reported individually. Identity confirmed against a DIM reference standard, not by appearance alone.
What should a buyer confirm before the first order?
Buyers comparing DIM offers usually find the difference in what the percentage refers to. Three points separate a true 99% grade from a relabelled extract.
Are you a manufacturer or a trading company?
LongBio is Shaanxi Longsheng Biotechnology Co., Ltd., a direct manufacturer of botanical extracts and functional ingredients integrating R&D, production and export support. Factory review can be arranged by video or an on-site visit.
Can I request the current batch COA before ordering?
Yes. Request the applicable current or representative COA and compare product identity, method, limits and results before approving a purchase order.
What is the minimum order quantity?
The regular MOQ is typically 1 kg. An evaluation sample of 10-20 g can usually be arranged before a formal order, subject to stock.
Do you support custom specifications or packing?
Alternative assay targets, particle size, packing and private-label requirements can be reviewed case by case, subject to production feasibility and a revised written specification.
Request COA, Sample or Quotation
Send your target specification, application, order quantity, destination country and required test limits.
Get the current batch COA, a sample or a quotation
