ChemicalBook > CAS DataBase List > PEAK E

PEAK E

Product Name
PEAK E
CAS No.
132685-02-0
Chemical Name
PEAK E
Synonyms
EBT;PEAK E;CONTAMINANT 97;1,1'-ethylidenebis;Tadalafil Impurity Q;Tadalafil Impurity 50 DiHCl;Tryptophan Related CoMpound A;Tryptophan EP Impurity A 2HCl;L-Tryptophan,1,1'-ethylidenebis;1,1’-Ethylidenebis[L-tryptophan
CBNumber
CB3701001
Molecular Formula
C24H26N4O4
Formula Weight
434.49
MOL File
132685-02-0.mol
More
Less

PEAK E Property

Melting point:
>210°C (dec.)
Boiling point:
718.5±60.0 °C(Predicted)
Density 
1.41±0.1 g/cm3(Predicted)
storage temp. 
0-6°C
solubility 
Aqueous Base (Slightly)
pka
1.95±0.10(Predicted)
color 
Pale Beige to Brown
Stability:
Decomposes under acidic condition, Hygroscopic
More
Less

Safety

HS Code 
2933997500
More
Less

Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P321Specific treatment (see … on this label).

P330Rinse mouth.

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P337+P313IF eye irritation persists: Get medical advice/attention.

P403+P233Store in a well-ventilated place. Keep container tightly closed.

P405Store locked up.

P501Dispose of contents/container to..…

More
Less

N-Bromosuccinimide Price

Sigma-Aldrich
Product number
PHR2602
Product name
Tryptophan Related Compound A
Purity
Pharmaceutical Secondary Standard; Certified Reference Material
Packaging
30MG
Price
$602
Updated
2024/03/01
Sigma-Aldrich
Product number
E2205500
Product name
1,1′-Ethylidenebistryptophan
Packaging
2ea
Price
$153
Updated
2024/03/01
Sigma-Aldrich
Product number
1700512
Product name
1,1′-Ethylidenebistryptophan
Packaging
15mg
Price
$1440
Updated
2024/03/01
TRC
Product number
E919880
Product name
1,1’-Ethylidenebis[L-tryptophan]
Packaging
25mg
Price
$180
Updated
2021/12/16
More
Less

PEAK E Chemical Properties,Usage,Production

Uses

1,1’-Ethylidenebis[L-tryptophan] is a L-tryptophan (T947210) contaminant found in the peripheral blood mononuclear cells from patients with functional somatic syndromes.

PEAK E Preparation Products And Raw materials

Raw materials

Preparation Products

More
Less

PEAK E Suppliers

China 57 India 2 Japan 1 United Kingdom 2 United States 5 USA 1 Global 68

132685-02-0, PEAK ERelated Search:

QBWNUEJPRUVNTD-FOIQADDNSA-N (6R,trans)-6-(3,4-dihydroxyphenyl)-2,3,6,7,12,12a-hexahydro-2-Methyl-pyrazino[1',2':1,6]pyrido[3,4-b]indole-1,4-dione Piperonyl aldehyde Tadalafil Impurity 44 Tadalafil Impurity 47 BENZHYDRYL 6,6-DIHYDROPENICILLIC ACID 1-OXIDE[TAZOBACTAM INTERMEDIATE] Tadalafil Impurity 49 HCl (1S,3S)-1-(1,3-Benzodioxol-5-yl)-2-(2-chloroacetyl)-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole-3-carboxylic Acid Methyl Ester Tadalafil EP IMpurity G Tadalafil Impurity 11 Tadalafil Impurity 39 Tadalafil Impurity 62 Tadalafil Impuirty 16 Tadalafil Impurity 25 (Mixture of Diastereomers) (1R,3R)-Methyl 1-(benzo[d][1,3]dioxol-5-yl)-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole-3-carboxylate hydrochloride (1S,3R)-1-Benzo[1,3]dioxol-5-yl-2-(2-chloro-acetyl)-2,3,4,9-tetrahydro-1H-b-carboline-3-carboxylic Acid Methyl Ester Tadalafil iMpurity E Tadalafil Spiro-urethane Impurity (EP Impurity F)

  • 1,1'-ETHYLIDENE-BIS(L-TRYPTOPHAN)
  • 1,1'-ETHYLIDENE-BIS(L-TRYTOPHAN)
  • PEAK E
  • EBT
  • CONTAMINANT 97
  • Tryptophan Related Compound A (15 mg) (1,1'-ethylidene-bis-(L-tryptophan))
  • Tryptophan Related CoMpound A
  • Tadalafil Impurity Q
  • 1,1'-ethylidenebis<l-tryptophan></l-tryptophan>
  • Tadalafil Impurity 50 DiHCl
  • L-Tryptophan,1,1'-ethylidenebis
  • 1,1'-ethylidenebis
  • 3,3'-[Ethylidenebis(1H-indole-1,3-d
  • 1,1'-Ethylidenebistryptophan CRS
  • (2S,2'S)-3,3'-(1,1'-(Ethane-1,1-diyl)bis(1H-indole-3,1-diyl))bis(2-aminopropanoic acid)
  • Tadalafil Impurity (1,1?'-thylidenebistryptophan)
  • Tryptophan Related Compound A(Secondary Standards traceble to USP)
  • Tryptophan Related Compound A (1,1''-ethylidene-bis(L-tryptophan)) (1700512)
  • Tryptophan USP Related Compound A
  • Tryptophan EP Impurity A(Tryptophan USP Related Compound A)
  • 1,1’-Ethylidenebis[L-tryptophan
  • Tryptophan EP Impurity A 2HCl
  • 132685-02-0
  • Amino Acids & Derivatives, Pharmaceuticals, Intermediates & Fine Chemicals