# ChemBlock

> ChemBlock is an online catalog of fine and specialty chemicals for laboratory research and bulk production.

Every product page is identified by its CAS Registry Number and lists the chemical name, molecular formula, identifiers and synonyms where available. Prices and lead times are quoted on request; the catalog lists 40,400+ compounds.

## Site
- [Home](https://chem-block.com/): featured products and categories
- [About](https://chem-block.com/about): about ChemBlock
- [Contact](https://chem-block.com/contact): inquiries, quotations and custom synthesis
- [Sitemap](https://chem-block.com/sitemap.xml): complete list of product pages

## Product categories
- [(1,2-c)quinazoline](https://chem-block.com/product/category?catId=7640&pageNumber=1)
- [(2,1-b)Quinazolin](https://chem-block.com/product/category?catId=8140&pageNumber=1)
- [(4,5-g)quinazolin](https://chem-block.com/product/category?catId=9610&pageNumber=1)
- [(5,1-b)quinazoline](https://chem-block.com/product/category?catId=9700&pageNumber=1)
- [Cyclohexanone](https://chem-block.com/product/category?catId=11540&pageNumber=1)
- [Hexanone](https://chem-block.com/product/category?catId=29850&pageNumber=1)
- [Quinazoline](https://chem-block.com/product/category?catId=32340&pageNumber=1)
- [Benzo Quinazoline](https://chem-block.com/product/category?catId=34910&pageNumber=1)
- [Quinazolinone](https://chem-block.com/product/category?catId=35440&pageNumber=1)
- [Hexane](https://chem-block.com/product/category?catId=36026&pageNumber=1)
- [CycloHexane](https://chem-block.com/product/category?catId=36125&pageNumber=1)
- [CycloHexane,](https://chem-block.com/product/category?catId=36130&pageNumber=1)
- [Hexanediol](https://chem-block.com/product/category?catId=51050&pageNumber=1)
- [Cyclohexanediol](https://chem-block.com/product/category?catId=51100&pageNumber=1)
- [()Quinazoline](https://chem-block.com/product/category?catId=58450&pageNumber=1)
- [Quinazoline](https://chem-block.com/product/category?catId=58880&pageNumber=1)
- [Quinazolinol](https://chem-block.com/product/category?catId=59600&pageNumber=1)
- [ChloroQuinazolin](https://chem-block.com/product/category?catId=60440&pageNumber=1)

## Example products
- [(2R,4R)-4-amino-1-(tert-butoxycarbonyl)pyrrolidine-2-carboxylic acid (CAS 1362622-69-6)](https://chem-block.com/products/1362622-69-6-2r-4r-4-amino-1-tert-butoxycarbonyl-pyrrolidine-2-carboxylic-acid)
- [Tiopronin (CAS 953-02-2)](https://chem-block.com/products/953-02-2-tiopronin)
- [4-methoxybenzoic acid (CAS 73424-02-9)](https://chem-block.com/products/73424-02-9-4-methoxybenzoic-acid)
- [1-VINYL-(CIS-1,2-BIS(4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL))CYCLOHEXAN-1-OL (CAS 264144-69-6)](https://chem-block.com/products/264144-69-6-1-vinyl-cis-1-2-bis-4-4-5-5-tetramethyl-1-3-2-dioxaborolan-2-yl-cyclohexan-1-ol)
- [PYRIDIN-2-YLMETHYL-(TETRAHYDRO-FURAN-2-YLMETHYL)-AMINE (CAS 202199-02-8)](https://chem-block.com/products/202199-02-8-pyridin-2-ylmethyl-tetrahydro-furan-2-ylmethyl-amine)
- [3,4,5-Trimethoxyphenylglyoxal hydrate (CAS 150114-69-5)](https://chem-block.com/products/150114-69-5-3-4-5-trimethoxyphenylglyoxal-hydrate)
- [2-Mercapto-7-methoxy-quinoline-3-carbonitrile (CAS 116705-02-3)](https://chem-block.com/products/116705-02-3-2-mercapto-7-methoxy-quinoline-3-carbonitrile)
- [(+)-Xestospongin A (CAS 88840-02-2)](https://chem-block.com/products/88840-02-2-xestospongin-a)
- [1-(Benzylthio)acetone (CAS 10230-69-0)](https://chem-block.com/products/10230-69-0-1-benzylthio-acetone)
- [5-FLUORO-2-METHYLBENZIMIDAZOLE (CAS 1184-69-1)](https://chem-block.com/products/1184-69-1-5-fluoro-2-methylbenzimidazole)
- [4-(1H-Tetrazol-5-yl)benzyl alcohol, 97% (CAS 501126-02-9)](https://chem-block.com/products/501126-02-9-4-1h-tetrazol-5-yl-benzyl-alcohol-97)
- [ZERENEX E/6026554 (CAS 3477-69-8)](https://chem-block.com/products/3477-69-8-zerenex-e-6026554)
- [3,4-dimethoxybenzimidohydrazide (CAS 939999-69-6)](https://chem-block.com/products/939999-69-6-3-4-dimethoxybenzimidohydrazide)
- [6-SULFOPICOLINIC ACID (CAS 18616-02-9)](https://chem-block.com/products/18616-02-9-6-sulfopicolinic-acid)
- [5-nitropyrimidine-2-carboxylicacid (CAS 1086393-02-3)](https://chem-block.com/products/1086393-02-3-5-nitropyrimidine-2-carboxylicacid)
- [Methyl 4-methoxysalicylate (CAS 5546-02-6)](https://chem-block.com/products/5546-02-6-methyl-4-methoxysalicylate)
- [1β,3β,5,14-Tetrahydroxy-19-oxo-5β-bufa-20,22-dienolide (CAS 23044-69-1)](https://chem-block.com/products/23044-69-1-1-3-5-14-tetrahydroxy-19-oxo-5-bufa-20-22-dienolide)
- [7-HYDROXY-4-PROPYL-2H-CHROMEN-2-ONE (CAS 19225-02-6)](https://chem-block.com/products/19225-02-6-7-hydroxy-4-propyl-2h-chromen-2-one)
- [5-(ISOPROPYLSULFONYL)-2-(2-PYRIDYL)PYRIMIDIN-4-AMINE (CAS 175202-02-5)](https://chem-block.com/products/175202-02-5-5-isopropylsulfonyl-2-2-pyridyl-pyrimidin-4-amine)
- [N,N,N',N'-1,4-PHENYLENEDIAMINETETRAACETIC ACID (CAS 1099-02-1)](https://chem-block.com/products/1099-02-1-n-n-n-n-1-4-phenylenediaminetetraacetic-acid)