Human Menopausal

Product Basic Introduction

This product is HMG (Human Menopausal Gonadotropin), CAS No.: 61489-71-2, a synthetic small-molecule peptide raw material specially developed for laboratory scientific research. Our factory adopts mature solid-phase peptide synthesis and multi-stage reversed-phase HPLC purification technology to produce this product. The whole production line is set in a 100,000-class clean workshop, with independent quality inspection links for each production step to guarantee stable batch purity and controllable impurity content. It belongs to research-grade experimental raw material, exclusively for in-vitro cell research, biochemical mechanism exploration, laboratory sample testing and other academic research scenarios, not for medical or cosmetic end-use preparation.

Precise Solid-phase Synthesis

High-stability amino acid protective groups are adopted to reduce mis-sequence and truncated peptide impurities during peptide chain assembly. After synthesis, specific cleavage reagents remove carriers and protective groups, and crude peptide is purified by multi-stage extraction to eliminate residual solvents and small molecular by-products fundamentally, lowering impurity interference for follow-up cell experimentsAccording to molecular polarity difference of HMG peptide, gradient mobile phase ratio is adjusted to separate single impurities, isomers and residual free amino acids. Only high-purity target peptide fractions are collected for follow-up freeze-drying, so the single unknown impurity of finished product can be controlled below 0.5%, total impurities less than 2.0%, fully meeting the high-precision experiment standard of academic papers.According to molecular polarity difference of HMG peptide, gradient mobile phase ratio is adjusted to separate single impurities, isomers and residual free amino acids. Only high-purity target peptide fractions are collected for follow-up freeze-drying, so the single unknown impurity of finished product can be controlled below 0.5%, total impurities less than 2.0%, fully meeting the high-precision experiment standard of academic papers.

Low-temperature Vacuum Freeze-drying

Purified peptide solution is dehydrated by sublimation under low-temperature vacuum condition, avoiding peptide chain denaturation and activity decline caused by high-temperature drying. The freeze-dried powder presents porous loose structure with fast dissolution speed, low moisture content, effectively inhibiting microorganism reproduction, and the sealed shelf life can reach 24 months under room temperature away from light.

Seven independent inspection links are set from raw material incoming to finished delivery: amino acid monomer raw material inspection, synthetic intermediate sampling test, purification fraction segmented detection, pre-freeze-drying peptide liquid full test, finished product comprehensive inspection, split packaging re-inspection and pre-delivery final review. Each batch is assigned exclusive batch code, matched with complete production records, HPLC chromatogram and mass spectrum sequence identification graph for permanent traceability

Full test items cover appearance, HPLC purity, single & total impurity content, loss on drying, heavy metals (Pb, As, Cd, Hg), total microorganism count, yeast & mold, pathogenic bacteria screening, endotoxin detection and sequence matching verification. Bilingual Chinese & English COA report and GHS standard MSDS can be provided for overseas laboratory filing and cross-border customs clearance.

Short-term storage (1-6 months): seal and store under cool and light-proof environment below 30℃; long-term storage (over 6 months): 2-8℃ refrigeration or -20℃ freezing storage is recommended to slow down molecular oxidation degrada