top of page

Home > Peptides >

Spantide I

Spantide I | CAS 91224-37-2 Manufacturer & Supplier in China

Are you looking for Spantide I (CAS 91224-37-2)? Conscientia Industrial is a trusted Spantide I manufacturer and supplier in China, offering ≥98.0% purity, ready stock, complete technical documentation, and reliable worldwide shipping. Request price and COA today.

Product Overview

Spantide I (CAS 91224-37-2) is a synthetic peptide analog of Substance P that acts as a neurokinin 1 (NK1) receptor antagonist. In physiological and neurochemical research, it is widely used to investigate tachykinin receptor signaling, neurogenic inflammation, pain pathways, and central nervous system peptidergic mechanisms. As a top professional peptide manufacturer in China, Conscientia Industrial produces Spantide I via advanced solid-phase peptide synthesis (SPPS), guaranteeing precise sequence fidelity, exceptional batch reproducibility, and outstanding purity.


Technical Specifications

  • Product Name: Spantide I

  • Synonyms: (D-Arg1,D-Trp7,9,Leu11)-Substance P

  • CAS Number: 91224-37-2

  • Sequence: H-D-Arg-Pro-Lys-Pro-Gln-Gln-D-Trp-Phe-D-Trp-Leu-Leu-NH2

  • Category: Peptides

  • Quality Standard: In-House Specification

  • Molecular Formula: C75H108N20O13

  • Molecular Weight: 1497.79

  • Appearance: White to off-white lyophilized powder

  • Purity (HPLC): ≥98.0%

  • Brand: Conscientia Industrial

  • Country of Origin: China

  • Availability: In Stock

  • Molecular Structure:


Spantide I CAS 91224-37-2 Molecular Structure


Why Choose Conscientia Industrial

  • Quality Assurance: Every batch of Spantide I undergoes stringent quality verification using HPLC and mass spectrometry to confirm correct sequence mass and purity compliance.

  • Documentation: Conscientia Industrial provides standard technical documentation for Spantide I (CAS 91224-37-2), including Certificate of Analysis (COA), Material Safety Data Sheet (MSDS), and Method of Analysis (MOA).

  • Production Capacity: Robust technical facilities easily adapt to varied order sizes, supplying both small-scale research quantities and larger commercial orders with consistent turnaround times.

  • Direct Source Advantage: As an established direct synthesis facility, Conscientia Industrial offers factory-direct pricing channels, open communication, and attentive technical support.


Packaging & Storage

  • Packaging: Supplied in 10mg, 50mg, 100mg, or 1g sealed vials, and 10g, 100g, or 1kg protective aluminum foil bags. Customized packaging and private labeling services are available upon request.

  • Storage Condition: Store in a tightly closed container protected from humidity and direct ambient light. Keep frozen at -20°C or lower for optimal stability.

  • Shelf Life: 24 months under specified sub-zero storage conditions.

  • Safety Handling: This product is intended for research and industrial use only. It is not intended for human or veterinary diagnostic or therapeutic use. Handle with proper personal protective equipment.


Shipping & Quotes

  • Conscientia Industrial provides worldwide logistics solutions for Spantide I (CAS 91224-37-2), including international courier service, air freight, and sea freight. A complete set of shipping documents is provided to support international import and export requirements.

  • Contact us today for the latest quotation, COA, MSDS, and technical documentation for Spantide I (CAS 91224-37-2).

Expert Review
Rating: 5/5
★★★★★ Marcus V. (Senior Research Scientist)
The peptide exhibits strong consistency in purity and structure, with reliable delivery and performance in our research applications. Highly recommended.

bottom of page