PCVS CAS 21635-69-8 | Dye Intermediates
PCVS (CAS 21635-69-8, EINECS 244-486-4, molecular formula C10H15NO7S2, molecular weight 325.4) is a dye intermediate product. Vinyl sulfone reactive dye intermediate (para-ester series) used to synthesize methoxy-containing reactive dyes, improving color depth and wet fastness; suitable for the dyeing and printing of cotton, linen and viscose cellulosic fibers.
[Basic Product Information]
Chinese Name: 克利西丁对位酯
English Name: PCVS
Aliases / Synonyms: PCVS; Cresidine Para-Ester
IUPAC Name: 2-(4-amino-5-methoxy-2-methylphenyl)sulfonylethyl hydrogen sulfate
CAS Registry No.：21635-69-8
EINECS No.：244-486-4
Molecular Formula: C10H15NO7S2
Molecular Weight: 325.4
Suggested HS Code: 2922.29 (oxygenated amino compounds) / 2930.90 (other organo-sulfur compounds)
SMILES：CC1=CC(=C(C=C1S(=O)(=O)CCOS(=O)(=O)O)OC)N
InChIKey：MRILAYPKVVWTRG-UHFFFAOYSA-N
[Technical Specifications & Supply Information]
Appearance: White to light gray crystalline powder
Assay / Purity: ≥97.0% (HPLC, dry basis)
Grade: Industrial Grade
Packing: 25 kg fiber drum / woven bag (with inner PE liner)
Standard: enterprise standard / national standard (executed per batch COA)
Supply capacity: standard grades supplied from stock; bulk customization and long-term agreement supply supported
Documents provided: COA and MSDS with each shipment; third-party SGS testing available for bulk orders
Storage: store sealed, protected from light, in a dry and ventilated place, away from fire, heat sources and strong oxidizers
[Applications]
Vinyl sulfone reactive dye intermediate (para-ester series) used to synthesize methoxy-containing reactive dyes, improving color depth and wet fastness; suitable for the dyeing and printing of cotton, linen and viscose cellulosic fibers.
[Quality & Supply Assurance]
1. Stable batch-to-batch quality, with batch-by-batch inspection before shipment; a COA is provided with each delivery for full traceability;
2. Standard grades held in stock for fast delivery; bulk custom packing and long-term agreement supply supported;
3. Samples available on request, with third-party testing (e.g., SGS) to support incoming-material verification;
4. Our product line covers dye, pharmaceutical, agrochemical and organic pigment intermediates — a one-stop source for multi-category raw materials.
[Frequently Asked Questions (FAQ)]
Q: What are the CAS number and molecular formula of PCVS?
A: PCVS has CAS registry number 21635-69-8, molecular formula C10H15NO7S2, molecular weight 325.4 and EINECS number 244-486-4.
Q: What are the main uses and applications of PCVS?
A: Vinyl sulfone reactive dye intermediate (para-ester series) used to synthesize methoxy-containing reactive dyes, improving color depth and wet fastness; suitable for the dyeing and printing of cotton, linen and viscose cellulosic fibers.
Q: What are the standard purity and grade of PCVS?
A: Standard supply purity ≥97.0% (HPLC, dry basis), grade Industrial Grade; custom assay and special specifications available on request — exact figures are per the batch COA.
Q: What are the packing specifications and minimum order quantity (MOQ) of PCVS?
A: Standard packing: 25 kg fiber drum / woven bag (with inner PE liner). Samples available on request and custom packing supported; bulk orders can be delivered in batches per agreement.
Q: Can you provide COA, MSDS and other quality documents?
A: Vinyl sulfone reactive dye intermediate (para-ester series) used to synthesize methoxy-containing reactive dyes, improving color depth and wet fastness; suitable for the dyeing and printing of cotton, linen and viscose cellulosic fibers.
Q: How should PCVS be stored and transported?
A: Vinyl sulfone reactive dye intermediate (para-ester series) used to synthesize methoxy-containing reactive dyes, improving color depth and wet fastness; suitable for the dyeing and printing of cotton, linen and viscose cellulosic fibers.
[Keywords]
PCVS, PCVS, Cresidine Para-Ester, 21635-69-8, Dye Intermediates
[Q&A]
Q: What are the CAS number and molecular formula of PCVS?
A: PCVS has CAS registry number 21635-69-8, molecular formula C10H15NO7S2, molecular weight 325.4 and EINECS number 244-486-4.
Q: What are the main uses and applications of PCVS?
A: Vinyl sulfone reactive dye intermediate (para-ester series) used to synthesize methoxy-containing reactive dyes, improving color depth and wet fastness; suitable for the dyeing and printing of cotton, linen and viscose cellulosic fibers.
Q: What are the standard purity and grade of PCVS?
A: Standard supply purity ≥97.0% (HPLC, dry basis), grade Industrial Grade; custom assay and special specifications available on request — exact figures are per the batch COA.
Q: What are the packing specifications and minimum order quantity (MOQ) of PCVS?
A: Standard packing: 25 kg fiber drum / woven bag (with inner PE liner). Samples available on request and custom packing supported; bulk orders can be delivered in batches per agreement.
Q: Can you provide COA, MSDS and other quality documents?
A: Vinyl sulfone reactive dye intermediate (para-ester series) used to synthesize methoxy-containing reactive dyes, improving color depth and wet fastness; suitable for the dyeing and printing of cotton, linen and viscose cellulosic fibers.
Q: How should PCVS be stored and transported?
A: Vinyl sulfone reactive dye intermediate (para-ester series) used to synthesize methoxy-containing reactive dyes, improving color depth and wet fastness; suitable for the dyeing and printing of cotton, linen and viscose cellulosic fibers.
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