Quality Control Architecture — From Raw Material Gate-In to 36-Month Retain
Every kilogram of aromatic ingredient that ships from our Delhi-NCR plants passes through six structured QC stages — from raw-material gate-in through in-process, finished-product, third-party NABL testing, retain-sample preservation, and per-monograph pharmacopoeia compliance. This is the QC architecture that pharma, F&F, and global cosmetic OEM buyers rely on.
The six QC stages every lot moves through
Stage 1 — Raw Material Gate-In
Every incoming raw material (botanical, intermediate chemical, isolate feedstock) is logged into our QC system with a lot reference, source declaration, vendor certificate, and a gate-sample drawn. The gate-sample runs through identity verification (FTIR / GC profile) and key impurity panels. Only after sign-off does the raw material enter the production silo.
Stage 2 — In-Process QC
During production — distillation, fractionation, crystallisation — process parameters are monitored on a per-batch basis. Vapour temperature, column pressure, reflux ratio, fraction cut points, crystallisation rate. Deviation flags trigger immediate operator review. In-process samples are drawn at critical fractionation points to verify ongoing chemistry.
Stage 3 — Finished-Product Testing (In-House)
Every finished lot is tested in our in-house QC lab against the SKU’s full spec sheet: specific gravity, refractive index, optical rotation (on chiral molecules), GC assay, GC-MS chromatogram with peak identification, organoleptic verification. The in-house COA is generated at this stage.
Stage 4 — NABL Third-Party Testing
For every production lot, a representative sample is sent to NABL-accredited third-party laboratories for verification. Heavy-metals panel, residual-solvent screen, microbial parameters (food / pharma grades), pesticide residue (organic-positioned grades). The third-party COA is attached to the in-house COA for buyer-facing documentation.
Stage 5 — Retain-Sample Preservation
Every production lot has a retain-sample preserved under controlled conditions (cool, dark, sealed in amber glass or HDPE) for 36 months from manufacture date. The retain-sample reference is on every COA. If a buyer ever needs to re-test, audit, or dispute a lot within that window, we can ship the retain-sample to a NABL-accredited lab of the buyer’s choosing.
Stage 6 — Per-Monograph Pharmacopoeia Compliance (where applicable)
For pharmacopoeia-graded SKUs (USP / BP / IP / JP / Ph.Eur), the full monograph parameters are tested against the published pharmacopoeia requirements. This stage is the difference between a “cosmetic-grade” lot and an “audit-ready pharma-grade” lot. Pharmacopoeia-compliant COAs are generated with monograph reference.
QC parameters tested on a typical pharma-grade lot
| Parameter | In-house | NABL third-party |
|---|---|---|
| Identity (FTIR / GC profile) | ✓ | — |
| Assay (GC%) | ✓ | ✓ (verification) |
| GC-MS chromatogram | ✓ | — |
| Specific gravity, refractive index | ✓ | — |
| Optical rotation (chiral) | ✓ | ✓ (verification) |
| Heavy metals (Pb, As, Cd, Hg) | — | ✓ |
| Residual solvents (where applicable) | — | ✓ |
| Microbial (TPC, yeast-mould, pathogens) | — | ✓ |
| Pesticide residue (organic-positioned) | — | ✓ |
| Pharmacopoeia monograph compliance | ✓ | — |
Quality philosophy — written into the SOP
- Repeatability over peak performance. A buyer can place 24 orders over 24 months and expect 24 lots that all match the same spec. Lot-to-lot consistency is the metric we optimise.
- Independent verification. Every lot has a third-party COA, not just our in-house COA. NABL accreditation means the testing lab is itself audited.
- Audit-traceable. Every lot can be traced back to its raw material source, its production batch, its in-process parameter readings, and its NABL retain-sample reference. 36-month window for dispute or audit.
- Buyer-spec adaptable. If your QA team has a parameter not in our default spec (e.g., a specific pesticide panel), we add it to your reservation-slot production. Spec sheets are buyer-customisable for repeat-order relationships.
How buyers use our QC pack in their own QA workflow
- Pharma OEMs: Pharmacopoeia-compliant COA + retain-sample reference + NABL third-party COA filed in their batch record. Goes into the regulatory submission for the finished pharma product.
- Cosmetic OEMs: COA + GC-MS + allergen-23 + organic-equivalent docs filed in their product safety report (PSR) for EU CPNP registration.
- F&F compounders: COA + GC-MS chromatogram + organoleptic sign-off filed against the compound recipe; on lot-to-lot variation, the next production batch is matched.
- Importers / exporters: Country-of-origin + COA + IFRA / REACH / FDA paperwork pack used for destination-customs clearance.
Need to review our QC pack before placing the PO? Ask.
Sample COA + GC-MS chromatogram + NABL third-party report template emailed within 4 working hours.