sinapultide
- CAS No.
- 138531-07-4
- Chemical Name:
- sinapultide
- Synonyms
- ATI 01;RWJ 45652;sinapultide;KL4 (peptide);sinapultide USP/EP/BP;RWJ 45652 CAS No:138531-07-4;L-Lysine, L-lysyl-L-leucyl-L-leucyl-L-leucyl-L-leucyl-L-lysyl-L-leucyl-L-leucyl-L-leucyl-L-leucyl-L-lysyl-L-leucyl-L-leucyl-L-leucyl-L-leucyl-L-lysyl-L-leucyl-L-leucyl-L-leucyl-L-leucyl-
- CBNumber:
- CB61357174
- Molecular Formula:
- C126H238N26O22
- Molecular Weight:
- 2469.4
- MDL Number:
- MFCD18251732
- MOL File:
- 138531-07-4.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Boiling point | 2047.1±65.0 °C(Predicted) |
|---|---|
| Density | 1.093 |
| pka | 3.31±0.10(Predicted) |
| form | Solid |
| color | White to off-white |
| Sequence | H-Lys-Leu-Leu-Leu-Leu-Lys-Leu-Leu-Leu-Leu-Lys-Leu-Leu-Leu-Leu-Lys-Leu-Leu-Leu-Leu-Lys-OH |
| InChIKey | QSIRXSYRKZHJHX-TWXHAJHVSA-N |
| FDA UNII | 040X3AX99T |
sinapultide price
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| ChemScene | CS-0113250 | Sinapultide 96.13% | 138531-07-4 | 1mg | $92 | 2026-06-04 | Buy |
| ChemScene | CS-0113250 | Sinapultide 96.13% | 138531-07-4 | 5mg | $227 | 2026-06-04 | Buy |
| ChemScene | CS-0113250 | Sinapultide 96.13% | 138531-07-4 | 10mg | $363 | 2026-06-04 | Buy |
| aablocks | AA009JO3 | Sinapultide >98% | 138531-07-4 | 1mg | $130 | 2026-05-28 | Buy |
| aablocks | AA009JO3 | Sinapultide >98% | 138531-07-4 | 5mg | $269 | 2026-05-28 | Buy |
sinapultide Chemical Properties, Uses, Production
Uses
Pulmonary surfactant.
Uses
Sinapultide is defined as a synthetic peptide replacement for SP-B, designed from the charge distribution of the last 22 amino acids of SP-B, and is clinically used for the prevention of respiratory distress syndrome (RDS) in at-risk premature infants.
Synthesis
The Protect 21 peptide resin was transferred to a 2000 ml reactor, add the reagent (TFA/TIS=932 ml/68 ml) which was prepared beforehand and pre-cooled to about -10 to -7C, and stirred at 13-16C for 65 minutes. The solvent was removed to a small volume under reduced pressure, 1000 ml of cold anhydrous ether was added, precipitated, the precipitate was collected by filtration, washed well with anhydrous ether and dried under vacuum. Obtained 84.5g (68.8mmol) of crude sinapeptide, yield 98.3%.
in vivo
Sinapultide-loaded microbubbles (MBs) (0.1 mg; nasal delivery; collected at 3, 6, 12 and 24 hours after LPS) improves pulmonary edema in lung injury and increases lung W/D weight in LPS-induced ALI mice[2].
sinapultide Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Nanjing Typeptide Biotechnology Co.,Ltd. | 19961912513; 19941518170 | sales@typeptide.com | China | 4450 | 58 |
| Wuxi Zhongkun Biochemical Technology Co., Ltd. | 0510-85629785 18013409632; | sales@reading-chemicals.com | China | 15165 | 58 |
| Hangzhou Peptide Biochem Co.,Ltd | 0571-89197072; 18668118770 | linda@peptide-china.com | China | 233 | 56 |
| Creative Peptides | info@creative-peptides.com | United States | 6083 | 56 | |
| Nanjing YaoCheng Pharmaceutical Co., Ltd. | 025-57043319 15261831516 | 307514552@qq.com | China | 298 | 50 |
| Nanjing Leon Biological Technology Co., Ltd. | 025-84523390 -127; 17705183659 | sales@njleonbiotech.com | China | 5501 | 55 |
| Nanjing Peptide Biotech Ltd. | 025-58361106-805 15951641583 | zhao.xu@njpeptide.com | China | 9976 | 55 |
| Chengdu Youngshe Chemical Co., Ltd. | +86-17380623303 | Caroline@youngshechem.com | China | 4726 | 58 |
| Hangzhou Peptidego Biotech Co.,Ltd. | 0571-87213919 15967184799 | Eric@peptidego.com | China | 7872 | 58 |
| Shanghai Han-Xiang Chemical Co., Ltd. | 17754423994 | candy@biochempartner.com | China | 3057 | 58 |
View Latest Price from sinapultide manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
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2026-09-18 | Sinapultide
138531-07-4
|
1g | 98%min | 1000g | WUHAN FORTUNA CHEMICAL CO., LTD | ||
![]() |
2026-09-02 | sinapultide
138531-07-4
|
$1.20-35.00 | 1kg | 99% | Henan Fengda Chemical Co., Ltd | ||
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2026-08-25 | sinapultide
138531-07-4
|
$70.00-700.00 | 10kg | 0.99 | 20tons | Zibo Hangyu Biotechnology Development Co., Ltd |
-

- Sinapultide
138531-07-4
- $0.00
- 98%min
- WUHAN FORTUNA CHEMICAL CO., LTD
-

- sinapultide
138531-07-4
- $1.20-35.00
- 99%
- Henan Fengda Chemical Co., Ltd
-

- sinapultide
138531-07-4
- $70.00-700.00
- 0.99
- Zibo Hangyu Biotechnology Development Co., Ltd




