Zhangjiagang Specom Biochemical Co. Ltd.

Zhangjiagang, China

We are offering l-methionine. Molecular formula: c5n11no2s molecular weight: 149.1 cas no: 63-68-3 characteristics: colorless or white glossy tabular crystal or white crystalline powder, slight special odor. Little bitter taste. Melting point: 280-281℃(decompound). Unstable to strong acid, can cause the demethylation. Soluble in water( 5.6g/100ml, 30℃), warm diluted ethanol, alkali solution and diluted inorganic acid. Hard to dissolve in ethanol, almost does not dissolve in ether.

We are offering l tryptophan molecular formula: c11h12n2o2 molecular weight: 204.23 cas no: 73-22-3 characteristics: white or a kind of white to yellowish crystalline powder, smell-less or slight smelly. 289 â°c decompounds, slightly soluble in water, does not dissolve in the ethyl alcohol;dissolves in the diluted acid or the diluted alkali, the long timeillumination will color up; heat together with water can produce the water a small amount of indole, like when heat up under the sodium hydroxide, the cupric sulfate existence, then will produce massive indole; heats up with the acid in the hidden place will be more stable; when coexist with medicine bulk drugs, carbohydrate, and aldehyde, it is extremely easy to decompose.

We are offering l-threonine. Molecular formula: c4h9no3 molecular weight: 119.12 cas no: 72-19-5 characteristics: white rhombic system crystal or crystalline powder. Smell-less, slight sweet taste. It is the essential amino acid.

We are offering l-citrulline. Molecular formula: c6h13n3o3 molecular weight: 175.19 cas no: 372-75-8 characteristics: white crystals or crystalline powder; acid taste. , slightly soluble in water. Practically insoluble in ether or ethanol.

We are offering l cystine molecular formula: c6h12n2o4s2 molecular weight: 240.29 cas no: 56-89-3 characteristics: white crystals or crystalline powder; tasteless. Practically insoluble in water, in ethanol and in ether. Dissolves in dilute hcl.

We are offering l-glutamine. Molecular formula: c5h10n2o3 molecular weight: 146.15 cas no: 56-85-9 characteristics: white crystalline powder with barely perceptile out and acid taste. Soluble in hot water, slightly soluble in water, practically insoluble in ethanol�acetone�aether.

We are offering L-asparagine. Molecular Formula: C4H8N2O3 Molecular Weight: 150.13 Characteristics: crystal, Melting point is 234~235?;(pre-heating to 226?), Relative density is 1.543, It is acid to litmus. Optical Activity-9.3°(c=1mol/L, sodium hydroxide), Optical Activity+20.0°(c=1mol/L, hydrochloric acid). It is methanol, alcohol, ether benzene insoluble, and it is acid, alkali soluble.

We are offering l glutamic acid molecular formula: c5h9no4 molecular weight: 147.13 cas no: 56-86-0 characteristics: white crystal powder, nearly odorless, it has special taste and sourness, dissolving in water, melting point is 189oc, insoluble in alcohol.

We are offering l proline molecular formula: c5h9no2 molecular weight: 115 cas no: 147-85-3 characteristics: colorless to white crystal or crystal powder, odorless, sweet, dissolving in water, insoluble in alcohol. Density is 1.35, and melting point is 220-222oc.

We are offering L-isoleucine 73-32-5. Molecular formula: c6h13no2 molecular weight: 131.17 cas no: 73-32-5 characteristics: white crystals or crystalline powder; slightly bitter taste, freely soluble in formic acid, soluble in water, practically insoluble in ethanol and ether.

We are offering l serine molecular formula: ho-ch2-ch-cooh molecular weight: 105.09 cas no: 56-45-1 characteristics: it is white crystal or crystalline powder , smellless, without impurity, sweet taste. T is easy to be dissolved in water and hardly to be dissolved in ethanol, acetone and ethyl ether .

We are offering l hydroxyproline molecular formula: c5h9no3 molecular weight: 131.13 cas no: 51-35-4 characteristics: white crystals or crystalline powder.

We are offering l alanine molecular formula: c3h7no2 molecular weight: 89.09 cas no: 56-41-7 characteristics: white crystal or crystalline powder with special sweet taste, easily dissolves in water., sparingly soluble in ethanol, and insoluble in ether.

We are offering l leucine molecular formula: c6h13no2 molecular weight: 131.17 cas no: 61-90-5 characteristics: white crystals or crystalline powder; slightly bitter taste. Very soluble in formic acid; in water, practically insoluble in ethanol or ether.

We are offering l phenylalanine molecular formula: c9h11no2 molecular weight: 165.19 cas no: 63-91-2 characteristics: white crystals or crystalline powder; slightly bitter taste. It dissolves readily in water and formic acid, does not solve in ethanol or ethyl ether.

We are offering L-valine 72-18-4. Molecular formula: c5h11no2 molecular weight: 117.15 cas no: 72-18-4 characteristics: white monoclinic system crystal or crystalline powder, and the recrystal using the ethanol solution is colorless platy or scaly crystal. Smell-less, has special bitter taste. Melting point:315℃. The ph value of the 5% aqueous solution is 5.5-7.0. It is stable to the heat, light and air. Easy to dissolve in water(8.85g/100ml，25℃), almost does not dissolve in ethanol and ether. Difficult to separate from the leucine.

We are offering L-norvaline 6600-40-4. Molecular formula: c5h11no2 molecular weight: 117.1474 cas no: 6600-40-4 characteristics: white crystals or crystalline powder.

We are offering L-prolinamide 7531-52-4. Molecular formula: c5h10n2o molecular weight: 115.15 cas no: 7531-52-4 characteristics: white crystalline powder.

• CertificationISO-9001: 2008 Certified
• Country of OriginIndia
• Manufacturer ByIntas Pharmaceutical

We are offering Beta-alanine 107-95-9. Molecular formula: c3h7no2 molecular weight: 89.09 cas no: 107-95-9 characteristics: white crystalline powder.

We are offering l ornithine hydrochloride molecular formula: c5h12n2o2.hcl molecular weight: 168.62 cas no: 3184-13-2 characteristics: white crystals or crystalline powder; characteristic odor. Freely soluble in water.

We are offering l aspartic acid. Molecular formula: c4h7no4 molecular weight: 113.1 cas no: 56-84-8 characteristics: white crystals or crystalline powder, acid taste, slightly soluble in water, practically insoluble in ethanol and ether.

We are offering l alanine. Molecular formula: c3h7no2 molecular weight: 89.09 cas no: 56-41-7 characteristics: white crystals or crystalline powder, odorless having a slightly sweet acid. It is soluble in water.

We are offering l cysteine. Molecular formula: c3h7no2s molecular weight: 121.16 cas no: 52-90-4 characteristics: white crystalline powder, tasteless, easily soluble in water but insoluble in alcohol and ether.

We are offering l cysteine hydrochloride monohydrate. Molecular formula: c3h8clno2s.h2o molecular weight: 175.64 cas no: 7048-04-6 characteristics: white crystals or crystalline powder; strongly acid taste. Very soluble in water.

We are offering d alanine. Molecular formula: c3h7no2 molecular weight: 89.09 cas no: 338-69-2 characteristics: white crystal or crystalline powder; soluble in water, slightly dissolves in ethanol, does not dissolve in ether, has fragrance, sweet taste.

We are offering dl threonine. Molecular formula: c4h9no3 molecular weight: 119.12 cas no: 80-68-2 characteristics: white crystal or crystalline powder. Smell-less, melting point: ~245℃(decompound). No optical rotation. The chemical properties are stable. Soluble in water(20.1g/100ml，25℃), the aqueous solution has sweet taste and it is tasty and refreshing. Hard to dissolve in methanol, ethanol（0.07g/100ml，25℃）, acetone, etc.

We are offering dl serine. Molecular formula: c3h7no3 molecular weight: 105.09 cas no: 302-84-1 characteristics: white crystals or crystalline powder.

We are offering dl tryptophan. Molecular formula: c11h12n2o2 molecular weight: 204.23 cas no: 54-12-6 characteristics: white to yellow white crystal or crystalline powder, odorless or with slight odor, slightly sweet. L-type is bitter; sweetness of d-type is similar to that of cane sugar. Ph value of 0.2% aqueous solution: 5.5~7.0, melting point: 295℃（decomposed). It has weak resistance to acid and light. It is soluble in water(0.4%, 25℃), diluted acid and alkali, slightly soluble in ethanol.

We are offering dl methionine. Molecular formula: c5h11no2s molecular weight: 149.21 cas no: 59-51-8 characteristics: white flake crystal powders, have a special smell, bulk density 1.34g/cm3, melting at 281ºc, it's soluble in water, slightly soluble in alcohol, belongs of sulfur amino acid and non-toxic.

We are offering n acetyl l glutamine. Molecular formula: c7h12n2o4 molecular weight: 188.18 cas no: 35305-74-9 characteristics: white crystal or crystalline powder.

We are offering n acetyl dl leucine. Molecular formula: c8h15no3 molecular weight: 173.21 cas no: 99-15-0 characteristics: white crystal or crystalline powder.

We are offering sodium caprylate. Molecular formula: c8h15nao2 molecular weight: 166.19 cas no: 1984-06-1 characteristics: cream coloured fine particle.

We are offering l lysine l glutamate. Molecular formula: c6h14n2o2.c5h9no4 molecular weight: 293.32 cas no: 5408-52-6 characteristics: white crystals or crystalline powder. It dissolves readily in water, does not solve in ethanol. Melting point is 197℃.

We are offering l lysine l aspartate. Molecular formula: c6h14n2o2.c4h7no4 molecular weight: 279.29 cas no: 27348-32-9 characteristics: white crystals or crystalline powder.