185757-16-8

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• Basic information

  1. Product Name: 1H-Pyrrolo[1,2-a][1,4]diazepine-1,5(2H)-dione,hexahydro-(9CI)
  2. Synonyms: 1H-Pyrrolo[1,2-a][1,4]diazepine-1,5(2H)-dione,hexahydro-(9CI);octahydro-1H-pyrrolo[1,2-a][1,4]diazepine-1,5-dione
  3. CAS NO:185757-16-8
  4. Molecular Formula: C8H12N2O2
  5. Molecular Weight: 168.19308
  6. EINECS: N/A
  7. Product Categories: PYRROLE
  8. Mol File: 185757-16-8.mol
  9. Article Data: 1

• Chemical Properties

  1. Melting Point: N/A
  2. Boiling Point: N/A
  3. Flash Point: N/A
  4. Appearance: /
  5. Density: N/A
  6. Refractive Index: N/A
  7. Storage Temp.: N/A
  8. Solubility: N/A
  9. CAS DataBase Reference: 1H-Pyrrolo[1,2-a][1,4]diazepine-1,5(2H)-dione,hexahydro-(9CI)(CAS DataBase Reference)
  10. NIST Chemistry Reference: 1H-Pyrrolo[1,2-a][1,4]diazepine-1,5(2H)-dione,hexahydro-(9CI)(185757-16-8)
  11. EPA Substance Registry System: 1H-Pyrrolo[1,2-a][1,4]diazepine-1,5(2H)-dione,hexahydro-(9CI)(185757-16-8)

• Safety Data

  1. Hazard Codes: N/A
  2. Statements: N/A
  3. Safety Statements: N/A
  4. WGK Germany:
  5. RTECS:
  6. HazardClass: N/A
  7. PackingGroup: N/A
  8. Hazardous Substances Data: 185757-16-8(Hazardous Substances Data)

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185757-16-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 185757-16-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,5,7,5 and 7 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 185757-16:
(8*1)+(7*8)+(6*5)+(5*7)+(4*5)+(3*7)+(2*1)+(1*6)=178
178 % 10 = 8
So 185757-16-8 is a valid CAS Registry Number.

185757-16-8Upstream product

• 82939-03-5 N-<(R)-α-benzyloxypropionyl>-cyclo-(β-alanylprolyl) 
• 82939-01-3 N-(β-alanyl)-L-proline p-nitrophenyl ester hydrochloride 
• 82939-04-6 (2R,9aS,9bS)-9b-Hydroxy-2-methyl-hexahydro-1-oxa-3a,6a-diaza-cyclopenta[e]azulene-3,6-dione 

185757-16-8Downstream Products

185757-16-8Relevant articles and documents

Cyclol Formation from Tripeptides containing β-Alanine

Pinnen, Francesco,Zanotti, Giancarlo,Lucente, Gino

, p. 1311 - 1316 (2007/10/02)

Attempts to synthesize stable tetrahedral intermediates (cyclols) from β-alanine containing precursors are described.Cyclization of N-(N-benzyloxycarbonyl-β-alanyl)-Phe-Pro-ONp gave N-(N-benzyloxycarbonyl-β-alanyl)-cyclo-(Phe-D-Pro).Cyclization of N-(N-benzyloxycarbonyl-Ala)-βAla-Pro-ONp and of N--Pro-ONp afforded the corresponding anhydrocyclols.The first example of an oxa-cyclol related to a ten membered cyclodepsitripeptide was synthesized by acylating cyclo-(βAla-Pro) with α-benzyloxypropionyl chloride followed by hydrogenolytic removal of the O-benzyl protecting group.

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