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tert-Butylacetyl Chloride

tert-Butylacetyl chloride is an intermediate used in synthesis of organic chemicals.

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(R)-(-)-2-Methylpiperazine

(R)-(-)-2-Methylpiperazine is a new chiral group, it is widely used in the synthesis of chiral drugs.

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2-Chloro-5-Methylthiophene

2-Chloro-5-methylthiophene is used as intermediate in organic syntheses.

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3-Chlorophthalic Anhydride

3-Chlorophthalic anhydride is a monochlorinated aromatic anhydride. It is an isomer of 4-chlorophthalic anhydride and a derivative of phthalic anhydride. It may be used to produce herbicides and pesticides, intermediates for active pharmaceutical ingredients and can be used as a monomer for the production of polyimides.

Properties
4-Borono-D-phenylalanine

CAS # 4166-53-4, 3-Methylglutaric Anhydride
Name  
3-Methylglutaric Anhydride
Synonyms  
4-Methyltetrahydropyran-2,6-Dione; 4-Methyltetrahydropyran-2,6-Quinone; M47809_Aldrich
Molecular Formula  
C6H8O3
Molecular Weight   128.13
CAS Registry Number  
4166-53-4
EINECS   224-020-6
SMILES  
CC1CC(OC(C1)=O)=O
InChI  
1S/C6H8O3/c1-4-2-5(7)9-6(8)3-4/h4H,2-3H2,1H3
InChIKey   MGICRVTUCPFQQZ-UHFFFAOYSA-N

 

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4-Chlorophthalic Anhydride

4-Chlorophthalic anhydride is a monochlorinated aromatic anhydride. It is an isomer of 3-chlorophthalic anhydride and a derivative of phthalic anhydride. It may be used to produce herbicides and pesticides, intermediates for active pharmaceutical ingredients and can be used as a monomer for the production of polyimides.

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4-bromooxane LAB GRADE 98%

Pharmaceutical intermediates

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5-hydroxytryptophan 99.0%

Name: L-5- hydroxy-tryptophan (Griffonia Seeds Extract)

Content Specifications:  5-HTP 99%

Molecular Formula: C11H12N2O3

Molecular Weight: 220.23

CAS No.: 4350-09-8

 

Specification:

Assay: 5-HTP≥99.0%

Physical Control

Appearance: Fine off-white powder

Odor: Characteristics

Taste: Characteristics

Sieve Analysis: NLT 95.0% pass 80 mesh

Moisture Content: ≤2.0%

Ash: ≤1.0%

Chemical Control

Arsenic?As?: ≤2ppm

Cadmiun(Cd): ≤1ppm

Lead(Pb): ≤3ppm

Mercury(Hg): ≤0.1ppm

Heavy Metals: ≤10ppm

Pesticides Residues: ≤1ppm

Microorganism Control

Total Plate Count: ≤10000cfu/g

Yeast & Mold: ≤1000cfu/g

Salmonella: Negative

E.Coli: Negative


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