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Risdiplam

CAS No.
1825352-65-5
Chemical Name:
Risdiplam
Synonyms
RG7916;2-(2,8-dimethylimidazo[1,2-b]pyridazin-6-yl)-7-(4,7-diazaspiro[2.5]octan-7-yl)-4H-pyrido[1,2-a]pyrimidin-4-one;Lispran;RO7034067;Risdiplam;2H4]-Risdiplam;Risdiplam (RG7916);Risdiplam (RG7916) ,S6925;Risdiplam (RG-7916, RO-7034067);7-amino-2,3-dihydro-1H-inden-4-ol
CBNumber:
CB64674494
Molecular Formula:
C22H23N7O
Molecular Weight:
401.46
MDL Number:
MFCD31657372
MOL File:
1825352-65-5.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-28 03:06:39
Product description Number Pack Size Price
Risdiplam ≥98% 29028 1mg $41
Risdiplam ≥98% 29028 5mg $128
Risdiplam ≥98% 29028 10mg $235
Risdiplam ≥98% 29028 25mg $389
Risdiplam 29028 5mg $116

Risdiplam Properties

Density 1.50±0.1 g/cm3(Predicted)
solubility Soluble in DMSO
pka 9.41±0.20(Predicted)
form solid
color Light yellow to yellow
InChI InChI=1S/C22H23N7O/c1-14-9-18(26-29-11-15(2)24-21(14)29)17-10-20(30)28-12-16(3-4-19(28)25-17)27-8-7-23-22(13-27)5-6-22/h3-4,9-12,23H,5-8,13H2,1-2H3
InChIKey ASKZRYGFUPSJPN-UHFFFAOYSA-N
SMILES C12C=CC(N3CC4(CC4)NCC3)=CN1C(=O)C=C(C1=NN3C=C(C)N=C3C(C)=C1)N=2
FDA UNII 76RS4S2ET1
ATC code M09AX10

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H335
Precautionary statements  P261-P305+P351+P338
NFPA 704
0
2 0

Risdiplam price More Price(56)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Cayman Chemical 29028 Risdiplam ≥98% 1825352-65-5 1mg $41 2026-04-30 Buy
Cayman Chemical 29028 Risdiplam ≥98% 1825352-65-5 5mg $128 2026-04-30 Buy
Cayman Chemical 29028 Risdiplam ≥98% 1825352-65-5 10mg $235 2026-04-30 Buy
Cayman Chemical 29028 Risdiplam ≥98% 1825352-65-5 25mg $389 2026-04-30 Buy
Cayman Chemical 29028 Risdiplam 1825352-65-5 5mg $116 2024-03-01 Buy
Product number Packaging Price Buy
29028 1mg $41 Buy
29028 5mg $128 Buy
29028 10mg $235 Buy
29028 25mg $389 Buy
29028 5mg $116 Buy

Risdiplam Chemical Properties,Uses,Production

Description

Risdiplam is a survival of motor neuron 2 (SMN2) splicing modifier.

Chemical Properties

light yellow powder to yellow powder

Uses

Risdiplam is used in preparation of Imidazopyridazinyl Pyridopyrimidinones for treating spinal muscular atrophy. Gene splicing modulator.

Mechanism of action

Risdiplam works by modifying the splicing process of the SMN2 gene, increasing the production of full-length and functional SMN protein.

Side effects

Body aches or pain, chest pain or tightness, chills, cough, ear congestion, fever, headache, loss of voice, runny or stuffy nose, sneezing, sore throat, trouble breathing, unusual tiredness or weakness and so on.

Synthesis

SNAr reaction between amine 194 and bromopyridine 195 gave 196 in good yield. Reduction by hydrogenation in the presence of a platinum catalyst followed by treatment with di-tert-butyl malonate gave pyridopyrimidone 197 in benzoxazole at elevated temperature in good overall yield for both steps. Mesylation to form sulfonate 198 then participated in a Suzuki coupling with 200 (derived from aryl chloride 199 via Miyaura coupling) to establish the risdiplam core skeleton. N-Boc deprotection of 201 using hydrochloric acid in isopropanol gave risdiplam (XXVI) which was isolated after pH adjustment.

Risdiplam synthesis

storage

0-4℃ for short term (days to weeks) or -20℃ for long term (months)

Risdiplam Preparation Products And Raw materials

Raw materials

Preparation Products

Risdiplam Suppliers

Global( 166)Suppliers
Supplier Tel Email Country ProdList Advantage
Shaanxi Cuikang Pharmaceutical Technology Co., Ltd
+8618829768577 gao490372054@gamil.com China 1249 58
Biopole Pharmatech Co., Ltd.
+8615151475053 biopole@163.com China 37 58
airuikechemical co., ltd.
+86-18353166132 sales02@airuikechemical.com China 983 58
Hebei Yanxi Chemical Co., Ltd.
+8618531123677 faithe@yan-xi.com China 5853 58
Anhui Ruihan Technology Co., Ltd
+8617756083858 daisy@anhuiruihan.com China 973 58
Apeloa production Co.,Limited
+8619933239880 admin@apcl.com.cn China 861 58
Capot Chemical Co.,Ltd.
+86-(0)57185586718 +86-13336195806 sales@capot.com China 29640 60
BOC Sciences
+1-631-485-4226 inquiry@bocsci.com United States 19936 58
CONIER CHEM AND PHARMA LIMITED
+8618523575427 sales@conier.com China 49979 58
Shaanxi Dideu Medichem Co. Ltd
+86-29-87569262 +86-15003564040 1056@dideu.com China 3970 58

Related articles

  • How is Risdiplam synthesised?
  • Risdiplam was approved by the USFDA for the treatment of spinal muscular atrophy caused by a mutation leading to a deficiency ....
  • Dec 28,2023

View Lastest Price from Risdiplam manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Risdiplam pictures 2026-04-20 Risdiplam
1825352-65-5
$55.00-129.00 99.35% 10g TargetMol Chemicals Inc.
Risdiplam pictures 2025-06-20 Risdiplam
1825352-65-5
1kg 0.99 20tons Hebei Yanxi Chemical Co., Ltd.
Risdiplam pictures 2025-02-13 Risdiplam
1825352-65-5
$1.00 1g 99% 10000 Apeloa production Co.,Limited
  • Risdiplam pictures
  • Risdiplam
    1825352-65-5
  • $55.00-129.00
  • 99.35%
  • TargetMol Chemicals Inc.
  • Risdiplam pictures
  • Risdiplam
    1825352-65-5
  • $0.00
  • 0.99
  • Hebei Yanxi Chemical Co., Ltd.
  • Risdiplam pictures
  • Risdiplam
    1825352-65-5
  • $1.00
  • 99%
  • Apeloa production Co.,Limited

Risdiplam Spectrum

7-amino-2,3-dihydro-1H-inden-4-ol Risdiplam RO7034067 4H-Pyrido[1,2-a]pyrimidin-4-one, 7-(4,7-diazaspiro[2.5]oct-7-yl)-2-(2,8-dimethylimidazo[1,2-b]pyridazin-6-yl)- 2-(2,8-dimethylimidazo[1,2-b]pyridazin-6-yl)-7-(4,7-diazaspiro[2.5]octan-7-yl)-4H-pyrido[1,2-a]pyrimidin-4-one Risdiplam (RG-7916, RO-7034067) 2H4]-Risdiplam RG 7916,Inhibitor,RG-7916,Risdiplam,RO 7034067,DNA/RNA Synthesis,RO-7034067,inhibit 2-(4,6-dimethylpyrrolo[1,2-b]pyridazin-2-yl)-7-(4,7-diazaspiro[2.5]octan-7-yl)-4H-pyrido[1,2-a]pyrimidin-4-one 7-(4,7-diazaspiro[2.5]octan-7-yl)-2-(2,8-dimethylimidazo[1,2-b]pyridazin-6-yl)pyrido[1,2-a]pyrimidin-4-one Risdiplam (RG7916) Lispran Risdiplam (RG7916) ,S6925 "7-(4,7-diazaspiro[2.5]octan-7-yl)-2-(2,8- dimethylimidazo[1,2-b]pyridazin-6-yl)-4H-pyrido[1,2-a]pyrimidin-4-one" RG7916 1825352-65-5 1825352-65-6 API